Honestly at level 30 I wouldn't even bother paying for a transfer, just create a new toon on the server of your choice, knowing what you know you learned you'll hit 30 fast enough again. no real reason to pay 18$ for a transfer unless your endgame in at least 1 job and some professions, which according to your profile you arent

as far as server suggestions, I play on Famfrit and it always seems pretty busy, and a couple of my friends swear by Couerl as being quite active also.