User blog comment:Wassboss/Round 1: Captain Falcon vs Sonic/@comment-5195329-20120723164242/@comment-5195329-20120804165057

You said this was completly based off of how they are in brawl, and in brawl, Capt Falcon is not a good character (sonic is meh). This is not tier list, this is the match-up, if you had these two characters doing what they're supposed to be doing, Sonic should win. CF can't approach, and has very low priority in his faster and more versatile attacks. Sonic will win this on how he works in the game. CF's best move isn't even mentioned, which is actually his up-air (especially vs sonic).

I based this on the technical properties of the game, doing the death battle way you're bringing up is only best if the characters come from two different games.