I highly recommend the War Island, of course I am biased towards Taselak but it has been a lot of fun. Ikalak is kind of the strange kid who eats worms though.
Dwilight is interesting if you stick to the north as mentioned, one of the Morekian realms or Astrum. The south is either at peace with the two Fissoas or still in the same what 2 year old stalemate of a war between Luria Nova and D'hara. Swordfell has finally broken its neutrality though I think and joined in with the war between Astrum and HD over Caiyun.
Atamara will get a bit more interesting soon, but still nothing that major. It could use some good old rebellions and Ducal power grabs.
No idea about FEI, I've never heard much good about in the all the years I've played this game. I've never been to EI and it has been a long time since I went to BT.
