well...here's how i break it down.
DOA4--got me fired from gamestop. "welcome to gamestop...gimme just a minute..." lol
SC2--cost me a semester at unm. "you going to class? fuck that lets battle."
sc2 was way more destructive to my life in terms of productivity than doa4 was, which says much about its inherent betterness, and since it is pretty much a given that sc4 is better than sc2...
i think this proves conclusively that sc4 is quite a bit better than doa4.
then again, by this logic oblivion is probably the best game ever made, which i don't really agree with myself...