Personally, I like Anvil the best. Sea. Sun. Nice architecture, and a Temple to Dibella.
Though, I like Kvatch too, simply for the symbol of the place (it has a wolf or something on it. Instant win!@

) and the Imperial city is...awesome.
The White-Gold Tower (AKA Imperial Palace) looming in the sky everywhere, the Arena, the Arcane university.....
