If you are planning to build your collection quickly beyond 3 pins, I see no good reason to go beyond a pro for starters. It's not like the pinball collection judges show up and ding you for style points for getting a pro. Now, if you are only going to add another pin every 2-3 yrs, then it makes sense to step up to the premium level (If the game warrants it...)
OK, now that I have said that, I would recommend going for 1 of either TWD prem - OR - MET pro or Prem AND Then 1 of either AFM or MM.