episode2 obi wan and boba vs. episode3 anakin and darth maul
fett vs leia and ig88
mace windu vs. 1alien and 1 predator from the movie alien vs. predator
i would say alien and predator but, it would be a close match
r2 is much smarter and is not stupid enough to get his own head blown off. besides r2 has better strategy,spit oil at them then burn them. and if he missed r4 would try it andd r2 would jet foot away then come around and zap r4.
boba would win thanks to his gun being much better he has a better ship and he is a little bit smarter but they are the same person they just were taught different things. but with the fact that boba is jango's clone they would have an even match if they had the same weapons.
yoda would easily kill boba. boba is good but not nearly as good as yoda
if 45 and 6 were not made yet they wouldnt fight but, anakin would have put his lightsaber through obi wan's head even if obi slashed they would both die. but if 45 and 6 were made obi would have thrown back his lightsaber to kill anakin