I'll go over top alliances and some wars that i know of
The Haze: picked up some former DOwners, doing very well in terms of points, ABP and BP, have active players. Seem to engage is some sort of war, but it's too early to tell how far they will go.
Reborn: also known as Bankster alliances, they got good guys, top alliance at the moment. They are assaulting Game Kings and taking their cities at will.
Rise of the Dragon: have some good players and some that are not so good. Some of their top guys are not playing here any more for various reasons=( RotD and its academy are kicking my butt right now and even took a couple of cities from us. Mostly inactives, but still gotta give em credit.
DFA: all i can say is they are one big alliance.
Black Sun: they have some really good players, they work well together and have excellent timing. Their top players seem like pros. They trim the fat, however still have a lot players with only a couple of cities. They are also trying to kick my butt and already took one city from us.
Reavers: my alliance, just going with the flow, fighting 3 big alliances=)
Servi Liberatem: might be the dark horse of this world. don't know much about them, but they are growing fast.
Forgotten ghosts: don't know what happened, but they slowed down a lot.