The playing surfaces at both grounds are fine - and that's about it.
Bellerive is bang in the middle of suburbia and has limited potential for growth and dreadful transport options.
York Park - aka Pork Barrel stadium - would mean that many Hobart fans won't attend. It's a horrible spectator experience.
The stadium is more about the spectator experience - as long as they get the surface right - if they get that right they will be looking at good crowds, and interstate fans wanting to come down for the experience.