Suggested by Sonic Megaman SF has a lot of forms and may be the strongest Megaman version next to EXE. That said, Tsuna is one of the highest tier Shonen Jump leads and his speed by the end of the series was insane. SF may have more raw attack power but I see Tsuna overwhelming him in an aerial battle and ultimately SF won’t have the reserves needed to win. This should be an intense battle all the way to the end. Tsuna wins.