This poll is awkward for me. I have the best chance to place well in OOS tournaments with Falco, however I play the best with Link.
In my home region I can generally beat anyone with Link that I can with Falco. Since Link isn't a broken son of a ***** like Falco is, I'm forced to think, and generally play better than I do with Falco. I don't have the bad habits, and pre-constructed strategies and planned out responses to certain situations with Link as I do with Falco since Link can't just death combo kiddies, has virtually no OOS game, cannot reliably approach, and generally gets ***** by anyone with a good CC game.
I ultimately voted Falco since I have the best chance of winning with Falco, but I believe Link is either my best, or second best character.