Quoted from tommyp:

Ive only bought NIB twice. Met and JP (stern).
Met - I didn't know enough at the time, bought a pro because it's literally how much money fell in my lap from an inheritance and I was interested anyways. After playing a premium, I'm glad I went pro. Ball lock - hammer obstructs view, snake mouth I honestly find annoying AF. I do wish the cross rose outta the PF on the pro..only feature I miss.
JP. Had to go premium because IMO the moving dino head made the game. Happy with that buy as well.
LE - I'd personally never waste the money for different art and a signature.