Universim looks interesting and I would back them... but after my experience with Castle Story / Sauropodstudio I am wary. I backed them two years ago and since then it seems like they spend more time preparing and recuperating from Conventions/Conferences than they do working on the game. I get the feeling I gave them $25 to go out and party...
On the other hand, Planetary Annihilation has come along well. The difference? One studio is run by very young and inexperienced people and the other is run by industry veterans.