There are some cool H4 helmets but most look really ridiculous. I mean, what happened to the good old visor? Why does it have to be all and any permutation of a weird single lens with other random bits poking out?
I miss the GUNGNIR helmet from Reach... they just butchered it in 4. On the other end of the spectrum though, I think the Recon helmet looks alot better now... so I've just been rolling with that one instead. :P