Which ones do you consider the best and worst against Ganondorf, and how do you usually get around these projectiles, be it powershielding, shieldwalking, dodging, etc?
I'll give my input on the projectile based fighters against whom I have the most experience. I'll leave the remaining characters to others with more expertise.
Samus is generally very easy for me. It's probably due to my experience vs samus more than any other character, but she's limited to power beam/charge shot, missile, homing missile, and for sake of argument, a really long zair (best in the game). Charge shot and both missiles are slow, so getting the power shield is easy and can be done very consistently. You can crouch under missiles which are fired while samus is jumping to get the missile cancel to happen, and approach during the follow-up missile rather than having to block all of them. Zair is better dealt with by spot dodging or wiz kicking/DA under the zair to knock her out of the air before the Zair connects. Difficulty: 4/10, Best Approach Option: Power shielding/perfect shield walking.
Diddy is pretty nasty with the bananas. Anyone who has played against a glide tossing, nana juggling Diddy knows as much. The most important thing here is to disrupt his banana game with aerials and dash attacks to grab them. Once you have possession of a banana you have many more approach options, or rather, you are going to have less of a problem approaching. Be aware that Diddy's will try to use your bananas against you by ^B next to them to send a rogue rocket barrel your way. Difficulty: 8/10, Best Approach Option: Low aerials and airdodges to grab bananas in the air, DA to grab them off the ground, wiz kick over grounded bananas (F*** Banana Technique)
Fox is a goof ball and his projectiles don't count for s***. No hit stun = not an issue. His projectiles don't affect how you choose to approach.
Toon Link has arrows, bombs, boomerang, and a short ranged zair which isn't of much merit. Arrow spam is easily perfect shield walked. Boomerang gets thrown in with arrows, but can also be tilted up and bounced off the ground to shut down aerial approaches. Bombs will be used from above often as well as thrown into the projectile cocktail toon link's brewing up. Can be intercepted with aerials and dashes (I believe), but in general, bombs are more easily avoided than toon link's other projectiles. Difficulty: 6/10, Best Approach Option: Shield Walking
My experience with
Pikachu is unfortunately limited to wifi matches generally, but his electric bouncy ball seems to be fairly easily power shielded or even rolled past/jumped over they're not in series. Difficulty: 2/10, Best Approach Option: Power Shielding, Shield walking, rolling
I suppose I could write about
Mario and
Luigi, but really, it's difficult for them to spam their fireballs to the point of annoyance. I don't know enough about mario match-ups to say if fludd can be used for much more than gimping recoveries.
I don't have trouble with
DDD's waddledees, but I haven't played enough tournament level DDD's to say for sure how difficult it is to approach beyond them. Their range is a limiting factor to be sure, and in general, they'll be going for that sweet chain grab on you.
A general note on projectiles: if you're having trouble, play on a level with at least one platform. Platforms are the default escape plan when being projectile spammed not because it gets you out of the line of fire, but rather because it causes your opponent to change what he's doing. He might jump and fire projectiles, begin to approach in some fashion, etc. Diddy on FD is 100x harder than Diddy on Battlefield. Common knowledge, I know, but I'm just throwing it out there.
