Help choosing NEU motor for my HB Lightning GT10 brushless conversion?

[Kenny135]

I am going to be converting a Hot Bodies Lightning GT10 to brushless and I want to buy a Neu motor to use with my conversion. I want to get ether a Neu 1509/1.5D motor or a Neu 1512/1D motor, I plan on using this motor with my Mamba Max ESC with a Trackpower 5400mah 3 cell lipo. Which one do you guys think is better and why? Thanks for the help.