Tsuna does have similar powers to Mikoto, and they even have that lion motif going. It would really be interesting to see them clash, not in a malicious way, just a friendly brawl. So they don't get rusty! Let's just hope they don't break too many things.

Well, Tsuna doesn't look like a mafioso, and he'd like to keep it that way. Though even if Mikoto isn't best role model, he's someone who he would like to be when he gets older. Someone where his guardians will put him in high esteem, not that they don't already. Plus, he'd probably think that Mikoto is pretty cool.