I was a server gypsy, moved so many times as a single boxer looking for the 'right' server:
Mags
Jubei Thos
Frostmourne
Ghostlands
Tichondrius (ally and horde) still have an ally mage there
Barthilas - (almost perfect)

and finally found it - Caelestrasz. I wouldn't move if you paid me and don't transfer here - we have enough boxers. Caelestrasz is not for you