OCE or NA for TBC anni?

Im Australian (Rough I know), and I will be playing tbc obvs but I just want to know what server I should play on. Do I:
a) Play OCE - Low ping but server might be dead (probably playing horde)

b) Play NA - 150-200 ping but alive server

Im leaning towards NA because I dont want a dead server but just want to know how many Aussies out there are playing oce ^.^