Okay, first time on the independent Wiki (I didn't even know for the longest time that it existed XD).
My main is Toon Link. In actuality, he's the only character I can effectively use, unless my reflexes and coordination are at their fullest, in which case I seriously own with Metaknight. EDIT: I'm also starting to learn Falco and his fastfalling and his projectile spamming ability, but it's slow-going. I can effectively combo with him, but I still have some trouble KOing, and I don't always successfully recover.
When I use Toon Link, I mainly play with an aggressive/projectile game, in a 3-to-1 ratio, with projectiles starting my combos, followed up by either very persistant aerial combos, or just some juggling.
I have not played in any professional tournaments, and, although I have tried a couple ATs, I don't really ever use them. I most commonly fight high-level AI, being able to defeat any single Lvl 9 with usually 2/5 stock left. However, matches with more than 2 AI usually end disastrously for me, as I can't focus on each player, and they tend to pile.