Drizzt beats a turtle, and Snake Eyes possibly could to but I can't see Leonidas beating one least not from how he is in the movie. Don't know who wulfgar is but if he can't beat one then it's four on two. Team fights usually would work in favor of the turtles though because most teams that are put up against them aren't able to work together while they turtles would be able to easily and could switch up so they wouldn't be fighting the same person all the time also. So unless Drizzt can even the playing field with magic and stuff I could see the turtles winning unless the other team got smart and split them all up so the turtles couldn't work together. It would probably also depend on where they were at.
drizzt and snake eyes could give the turtles all hell by themselves..
It's a bit strange to see people aren't really giving leonidas that much respect.. 😬
The guy's trained his whole life for combat, and to be honest he'd outright punk a guy like casey jones... who has in turn been more than a bit of trouble for several one on one confrontations with different turtles in the past.
Leonidas could at the very least hold his own against a turtle and keep them a bay with the help of his advantages in range and heavy armor...
Drizzt is more likely than not dropping his guy assuming it's not leo he's fighting.
And snake eyes (who is also kinda contingent to his gear at the time) is more than enough to be a handful for any turtle he fights... Depending on his gear he could easily drop his mutant.
I have no idea about wolfgar so i can't comment on him.
All that said, the turtles still win basically due to the coherent teamwork advantage... there's not much way around that in a team dual and that, ironically like leonidas' phalanx is the strength of the tmnt in their team vs. team fights.