I'm looking into purchasing my first arboreal snake in the next few weeks and have been doing some research, but can't seem to make a decision. Should I go with a GTP, ETB or ATB as my first? Any advice or suggestions would be greatly appreciated!

I currently have a pastel ball python and a blood python so I know this will be a whole new ball game/experience.

Sorry for posting in the ball python section, but this forum seems to get the most viewers.

Thanks!