I have to go with SuperStar or HF.
SuperStar is big, heavy, H-shaped and DEAD smooth.
I can’t say that much about the HF, but it is said to be one of the better delrin models out there. It is a little bit expensive in relation to other delrins out there, but it is cheaper then the SuperStar.
I don’t know that much about Difs, but the Tank is said to be really great.
I don’t really get why you posted the Axiom since it’s fairly small. So it’s far from the best choice. Atleast switch the option out with a Meteor. It’s pretty light but it is a lot bigger than the Axiom.
G5… This is one thing I can’t really say anything about. It does fit your preference though, so go ahead if you want to.
But again, SuperStar and HF seems to be the better choices. The HF is round-ish so if that turns you off than don’t buy one. But if you really like the New Breed, HF is a pretty good choice.
Addment: The Tank won’t do you bad. They are a bit underrated from what I’ve heard.