Next r5?

Spookyquail

Last time, I maxed out corvus. This time, I have two better champs to r5, but I can't decide who it'll be between all my other champions. Who should I r5 from these guys?

Gr8TonyStark

Go doom first, then ghost or cgr. Also try to awaken ghost. Apoc is great too and should be ranked up. But for act5, doom and ghost will save you tonnes of units.

te_dua_shum

if you still haven't done 5.2.4 and after i would suggest you to rank up apoc, he is really good for both masochism and bane, and then i would rank up doom: he is probably the better between the two, but apoc might help you earlier ^_^