Here are some differences I can discern from my own frame research:
Fox begins his rapid kicks 1 frame sooner than Falco
Falco's forward tilt does damage for 1 frame more than Fox
Falco's up tilt ends 1 frame sooner, but Fox can interrupt the animation for the same effect (this is about the least inportant difference imaginable)
Fox's forward smash hits for 1 frame longer than Falco's
Fox's up smash hits for 2 frames longer than Falco's
Falco's head (but not nose) is invincible 1 frame longer than Fox's during their up smashes
Falco's legs are invincible from frames 1-6 during his down smash, compared to Fox's only on frame 6. This means that Falco's legs are invincible while he's charging it, Fox's aren't
Falco's back air can auto cancel 1 frame sooner than Fox's
Same with the down air
Falco is invincible for 1 frame when he uses Reflector, Fox isn't
Falco's up B ends 8 frames sooner than Fox's
I got different blaster timing for Falco's blaster, though. I think you got the numbers backwards. And the difference between their forward B's is 4 frames. Here's the charts:
--FOX--
by SuperDoodleMan
IASA = Interruptible as soon as,
meaning some of the animation can be
cut off by doing an attack or somethi
-ng.
Auto cancel = after an air attack is
done doing damage, there is often an
animation of the character returning
to their falling state, during which
you can't do anything. Some attacks
are such that that animation will not
give any lag upon landing.
Landfallspeciallag = After many B
recovery moves, your character will
flash black and not be able to do
anything. When they land from this,
even though the falling animation may
be the same, the time it takes to
recover on the ground is dependant on
which move you did.
-------------------------------------
Punch 1
Total: 17
Hit: 2-3
IASA: 16
Window of the second punch: 3-31
Second punch starts: 6 (orlater)
-------------------------------------
Punch 2
Total: 20
Hit: 3-4
IASA: 19
Window of the kickjabs: 1-20
Kickjabs start: 6
-------------------------------------
Kickjabs
intermediary animation: 6 frames
Hits: 3-4, 10-11, 17-18, 24-25, 31-32
1 full cycle: 36 frames
-------------------------------------
F Tilt
Total: 26
Hit: 5-8
-------------------------------------
D Tilt
Total: 29
Hit: 7-9
IASA: 28
-------------------------------------
U Tilt
Total: 24
Hit: 5-11
IASA: 23
-------------------------------------
Dash attack
Total: 39
Hit: 4-17
IASA: 36
-------------------------------------
F Smash
Total: 39
Hit: 12-22
Charge frame: 7
-------------------------------------
U Smash
Total: 41
Hit: 7-17
Head invincible (but not snout): 1-9
Charge frame: 2
-------------------------------------
D Smash
Total: 49
Hit: 6-10
Legs invincible: 6
IASA: 46
Charge frame: 2
-------------------------------------
N-Air
Total: 49
Hit: 4-31
IASA: 42
Auto cancel: <3 37>
Landlag: 15
Lcanceled: 7
-------------------------------------
U-Air
Total: 39
Hit: 8-9, 11-14
IASA: 36
Auto cancel: <7 26>
Landlag: 18
Lcanceled: 9
-------------------------------------
B-Air
Total: 39
Hit: 4-19
IASA: 38
Auto cancel: <3 24>
Landlag: 20
Lcanceled: 10
-------------------------------------
D-Air
Total: 49
Hit: 5-6, 8-9, 11-12, 14-15, 17-18,
20-21, 23-24
Auto cancel: <4 31>
Landlag: 18
Lcanceled: 9
-------------------------------------
F-Air
Total: 59
Hit: 6-8, 16-18, 24-26, 33-35, 43-45
IASA: 53
Auto cancel: <5 49>
Landlag: 22
Lcanceled: 11
-------------------------------------
Grab
Total: 30
Grab: 7-8
-------------------------------------
Running grab
Total: 40
Grab: 12-13
-------------------------------------
Reflector
Total: 39 (or more)
Hits: 1
Reflects: 4-release+1
Jump cancelable: 4-release+1
Lag upon release: 19
-------------------------------------
Blaster
--Ground--
Total (single shot): 23
Shot comes out: 12
--Air--
Total (single shot): 36
Shot comes out: 10
Repeated shots, every 10 frames
-------------------------------------
Fox Illusion
Total: 63
Fox starts moving away: 21
Hit: 22-25
Time to press B and stop Fox: 20-24
Can grab edge as early as 29
Landlag: 20
Landfallspeciallag: 3
-------------------------------------
Fire Fox
Total: 92
Hit: 20, 22, 24, 26, 28, 30, 32,
43-72
When to aim: 42
Can grab edge during first part as
early as 16
Can grab edge during moving part as
early as 73 (if firing straight into
wall, if you go downward at the edge,
Fox will stop firing to grab it)
Landlag: 6
Landfallspeciallag: 3
-------------------------------------
Jump: airborne on frame 4
Air dodge
invulnerable 4-29 out of 49
Landfallspeciallag: 10 frames
Ground dodge
invulnerable 2-15 out of 22
Roll
Invulnerable 4-19 out of 31
landing stun: 4 frames
dash becomes run at frame 12
--FALCO--
by SuperDoodleMan
IASA = Interruptible as soon as,
meaning some of the animation can be
cut off by doing an attack or somethi
-ng.
Auto cancel = after an air attack is
done doing damage, there is often an
animation of the character returning
to their falling state, during which
you can't do anything. Some attacks
are such that that animation will not
give any lag upon landing.
Landfallspeciallag = After many B
recovery moves, your character will
flash black and not be able to do
anything. When they land from this,
even though the falling animation may
be the same, the time it takes to
recover on the ground is dependant on
which move you did, and the animation
can sometimes be interrupted.
-------------------------------------
Punch 1
Total: 17
Hit: 2-3
IASA: 16
Window of the second punch: 3-31
Second punch starts: 6 (or later)
-------------------------------------
Punch 2
Total: 20
Hit: 3-4
IASA: 19
Window of the kickjabs: 1-20
Kickjabs start: 7
-------------------------------------
Kickjabs
intermediary animation: 6 frames
Hits: 3-4, 10-11, 17-18, 24-25, 31-32
1 full cycle: 36 frames
-------------------------------------
F Tilt
Total: 26
Hit: 5-9
-------------------------------------
D Tilt
Total: 29
Hit: 7-9
IASA: 28
-------------------------------------
U Tilt
Total: 23
Hit: 5-11
IASA: 23
-------------------------------------
Dash Attack
Total: 39
Hit: 4-17
IASA: 36
-------------------------------------
F Smash
Total: 39
Hit: 12-21
Charge frame: 7
-------------------------------------
U Smash
Total: 43
Hit: 7-15
Head invincible (but not beak): 1-10
Charge frame: 2
-------------------------------------
D Smash
Total: 49
Hit: 6-10
Legs invincible: 1-6
Charge frame: 2
IASA: 46
-------------------------------------
N-Air
Total: 49
Hit: 4-31
IASA: 42
Auto cancel: <3 37>
Landlag: 15
Lcanceled: 7
-------------------------------------
U-Air
Total: 39
Hit: 8-9, 11-14
IASA: 36
Auto cancel: <7 26>
Landlag: 18
Lcanceled: 9
-------------------------------------
B-Air
Total: 39
Hit: 4-19
IASA: 38
Auto cancel: <3 23>
Landlag: 20
Lcanceled: 10
-------------------------------------
D-Air
Total: 49
Hit: 5-24
Auto cancel: <4 30>
Landlag: 18
Lcanceled: 9
-------------------------------------
F-Air
Total: 59
Hit: 6-8, 1-18, 24-26, 33-35, 43-45
IASA: 53
Auto cancel: <5 49>
Landlag: 22
Lcanceled: 11
-------------------------------------
Grab
Total: 30
Grab: 7-8
-------------------------------------
Running Grab
Total: 40
Grab: 12-13
-------------------------------------
Reflector
Total: 39 (or more)
Hits: 1
Invincible: 1
Reflects: 4-release+1
Jump cancelable: 4-release+1
Lag upon release: 19
-------------------------------------
Blaster
--Ground--
Total (single shot): 57
Shot comes out: 23
Repeated shots, every: 24 frames
--Air--
Total (single shot): 42
Shot comes out: 13
Repeated shots, every: 16 frames
-------------------------------------
Falco Phantasm
Total: 59
Falco starts moving away: 17
Hit: 18-21
Time to press B and stop Falco: 17-20
Can grab edge as early as 25
Landlag: 20
Landfallspeciallag: 3
-------------------------------------
Fire Bird
Total: 84
Hit: 43-64
When to aim: 42
Can grab edge during first part as
early as 16
Can grab edge during moving part as
early as 65 (if firing straight into
wall, if you go downward at the edge,
Falco will stop firing to grab it.
Landlag: 6
Landfallspeciallag: 3
-------------------------------------
Jump: airborne on frame 6
Air dodge
invulnerable 4-29 out of 49
Landfallspeciallag: 10 frames
Ground dodge
Invulnerable 2-15 out of 22
Roll
Invulnerable 4-19 out of 31
Landing stun: 4 frames
dash becomes run at frame 12
-----------------------------------------------------------------
I've done charts like these for 9 other characters. I'm just a guy with an Action Replay.