Stern has a lot of awesome pinball machines out right now. Depends on which theme you like and gameplay that fits you. I purchased the Avengers Infinity Quest Pro and then upgraded to the Premium. Both are amazing and you can not go wrong buying the Pro or Premium. If you have the money I would get the Premium.
I own Black Knight Sword of Rage Premium and do not see it ever leaving my collection. It’s a very intense and aggressive game. I love everything about the game. Black Knight Sword of Rage Premium checks everything off on my list. It always keeps me coming back for more.
I played the Deadpool Pro and Premium. Deadpool is an awesome game. I have a Deadpool pro on order. The diverter was the only thing that could have possibly swayed me toward a premium, but I could not see spending the extra money.
Also, I played the Jurassic Park pro, Iron Maiden Pro and IM Premium a good bit. They are all great games, but they did not keep my interest and I did not have the feeling of wanting more. TMNT is not one that I would buy for my collection. Latest pin I tried was Led Zeppelin Pro and Premium, but this would not be one in my collection.

Premium Choice
Avengers Infinity Quest Premium or Black Knight Sword of Rage Premium (my opinion both are awesome)

Pro Choice
Deadpool Pro
Avengers Pro