Revised matchup ohpinyons:
7:3
Bowser (You automatically win if it isn't Sliq)
Link (Easy to gimp)
Ganondorf (Easy to gimp)
Captain Falcon (Easy to gimp...)
6:4
Mario (Gimpable)
Yoshi (Fair out of double jump = win button)
Zelda (One you get spacing down, not much she can do to you...)
Shiek (Meh, just avoid the u-smash and it's easily in your favor.)
Samus (Easy to juggle, just stay on top of her.)
Pit (Somewhat easy to gimp, air game non-threatening; stay close obviously)
Ivysaur (Easy to gimp, easy to get pulverized; be careful)
Ike (Wonderful weight/fall speed for Jiggs. Try not to get hit.)
Lucas (Don't walk into a u-smash and it's reasonably easy. His uair and nair are decent though.)
Sonic (It's pretty easy to trade hits with him any time you want, which will result in Jiggs winning the match.)
5:5
Peach (Meh.)
DK (He's like a Bowser that can bair you in the face)
Diddy (Annoying in the air, but Jiggs has less issues than most with his crazy ground game)
Zamus (Side-B, down-b, and uair are bothersome, but that's about it...)
ROB (Lives forever; Just don't jump into a nair.)
Kirby (Meh. Know his aerials.)
Meta Knight (Wait, am I serious?)
Fox (Not that bad, as long as you can avoid the uairs.)
Falco (It's all about gimping his recovery. To Jiggs he's like a worse Fox with lasers.)
Wolf (Meh.)
Charizard (Don't get hit and it's easy.)
Jigglypuff (...)
Ness (Annoying fair, killer bair and uair. Easy to gimp.)
Snake (Endless aerial assualt vs. u-tilt...)
4:6
Luigi (Nair priority, Up-B out of everything, you can attack shield freely)
Wario (Lives forever, annoying aerial game, f-smash from the devil)
Toon Link (Most annoying aerials ever, recovery hard to gimp.)
DeDeDe (Stupid bair, mildly annoying projectiles that help your stale moves list manipulation.)
Olimar (Annoying but bearable disjointed hitboxes... good thing no one plays him.)
Pikachu (Annoying fight, almost impossible to gimp.)
Squirtle (WHAT IS THIS I DON'T EVEN)
Lucario (Annoying aerials and jabs, hard to kill, Rest a must)
Marth (Stupid aerial range AND SPEED. Random u-smashes seem to kill me too, plus up-B...)
3:7
Game & Watch (Still ridiculous. Also, judgement 9s. Screw you Joel.)
1:9
Mewtwo (I give up. Every attempt I make to make this matchup better only results it it seeming more impossible. He can not only grab you out of all your aerials, but also pivot grab you out of POUND...)