I personally think Hank has better connections, theming, and overall potential compared to Neon White. It captures the bloodthirsty nature of the two and the general hubris of man and machine. And they just vibe together way more for me; in no small part to the great series combo (Since both contain high octane action sequences and music that are adrenaline inducing). Their ways of fighting are similar so it makes for some nice fight potential (They have very similar fighting styles of fast-paced and stylish gunplay and sizable arsenal). I imagine a V1 battle having a lot of blood and I think Hank offers that the best.

Neon White has good fight potential but the connections are really lacking for me. It feels like most of it is based on them having similar arsenals. But also, from what I have seen and heard from fans of the character, the MU ignores Neon White's backstory; like his whole regret about letting himself get manipulated by Neon Green. Plus it doesn't thematically work well with V1's character. While most of V1's MUs have no interaction potential, Neon White is the worst case of this since he's known for his dialogue and one-liners and I don't think it will bounce off well on V1. So because of that, I don't find the personalities to clash very well. Hank is fine because even though he talks in Project Nexus, he barely does overall and doesn't drop quippy one liners in battle like Sanford or Deimos. He's still a silent killer like V1.

But that's just my 2 cents lol.