I`ve got so many Tbh:-
Dark Eldar:- Their mini`s are so beautiful it`s amazing. I do play this army and I`ll admit whilst I lose quite a bit, I know they`ll normally be the best looking models on the field even without a paint job!
Necrons:- Whilst I`m not a great fan of the warriors everything else about them is pretty damn cool. I cant wait to see the rest of their releases.
Tau:- The moment I saw these guys I thought OMG Anime has come to GW!!!! I hope when they re-do them their minis stay as cool if not cooler. The fluff puts me off a bit but hey thats what your own fluff is for isn`t it
Orks:- Even if you didn`t see the rules you`d be able to tell their a very unpredictable army. That combined with the possibility of conversion work available is just mindblowing.