I think Fuji NPH would be the equivalent of VC400; both have a nominal speed of 400 though I expose both at EI 200.
Fuji NPZ is an 800 speed film. While I think it's the best of the 800 speed films, it's grainer than either Fuji or Kodak 400 speed stuff.
I've used tons of 400 UC. It's been my favorite color film since it's introduction. Lately, though, I'm shooting more in mixed light available light. I'm thinking that the Fuji films are better at keeping the shadows from going green.