Tiger is a strong fighter but he’s not quite on Yusuke’s level. He can amp up his strength and speed for a limited time but even at his best he isn’t moving as quickly as Yusuke. Yusuke was a really powerful guy even before he died, at least relative to the other humans. After that his development really kicked in and at this point it just wouldn’t be a contest between them. Yusuke wins.
Leo is a strong and capable warrior but at the end of the day he’s a power type who isn’t well equipped to deal with Tiger’s speed. Tiger should be able to easily stay a few steps ahead of him throughout the whole fight. Leo’s swings will just keep on missing and ultimately that means he won’t have a way to deal damage. He’ll go down after a few full powered blows. Tiger wins.