I like Shiva.
Shiva is pretty much the unofficial german server with so many germans gathering here. I don't mind speaking english at all but it definitely makes it easier sometimes.
Pretty full here and even with patch lull, queues are fairly short and there's still a lot going on in PF. Sometimes weird things happen in Limsa and the constant strumming from Bards tends to grate my ears after some time but other than that, I'd say it's a good server.
Some of my friends transed to Odin and regretted it. xD