Personally, since the Doubles metagame atm can be played pretty similar to the VGC 12 / VGC 13 meta I'm using a fairly offensive cress set with HP Fire / Twave / Ice Beam / Psyshock. I'm still undecided on how to EV it properly though, given that the major damage benchmarks haven't been really set out here like they have in VGC (i.e. Dragon Gem Latios Draco Meteor, etc.). It's kinda sad because for cress to be bulky effectively in this meta it has to lose some offense that it will almost always need, and vice versa... 3HKOed some ferrothorn today with non - Expert Belt HP Fire and I was stunned slightly.
On that note, what have you guys been trying for Cresselia sets? I'd assume that VGC far would translate pretty well into this metagame but with the addition of new legendaries there might be some other set or moves that are better here. I have yet to try the combo of Skill Swap Cresselia + Heatran, so if someone could post their experiences with that it could be a great insight into how much VGC and Smogon Doubles are similar, at least at this moment! :)