Cyrax needs nerfs, the other triborg variations really don't, and yeah im including CSZ in that no further nerfs category too.
As for Alien, tarkattan should be left alone (he's nowhere near prepatch tanya levels, c'mon guys), acidic...maybe ease up on the DoT's a lil bit?
And bo rai cho, Nerf that GG-cropduster corner setups and maybe, buff something else? lol have no clue about this character. Oh yeah, and his guaranteed reset, thats gotta go.