I would have to vote for different powers and AT's thats what really draws my attention...but since that isn't an option I chose bases. Not because it's my "favorite" out of that category, but because it needs more to it. One thing that would make bases popular is adding personalized rooms, a Wreck room (where u chose what enemies and difficulty you want to fight, maybe even Sig Heroes/AV's/GM's for badges), and more missions for the SG's. I gaurantee if you added more things to bases it would be a major aspect in the CoX universe.