Quoted from pezpunk:Game of Thrones for sure. get the Premium, though. the Pro is too stripped down.
GoT is way, way more popular than Star Trek, especially among the craft brew crowd. (i say that as a huge Star Trek nerd myself .. and craft brew person)
As an operator as well as a collector I can't recommend the premium over the pro. The additional investment will not earn more money. Save that money and put it towards another pin. I operate a ST Pro on location and it does OK. I brought in Full Throttle by Heighway and it has been slightly out earning it. (my arcade is mainly a redemption arcade for kids) Ghostbusters Pro will be here Monday and I'm looking forward to see how it earns compared to the other two.
Edit: We went with ST over GOT because of the fact that I have so many kids and thought it was bright and shiny and more kid friendly. I can't tell you whether it was the correct decision though. It doesn't give us any issues. I own both in my personal collections and don't really have many issues with them there either. Both seem very reliable.