I can honestly say... Kind felt Nate Richards was always... annoying. Like almost everything about him. Granted I get what making him a bridge between Kang and Reed, and then possibly Doom does but... I just think that's just one of those straws that broke the camel's back deals for me. It's like, it's the MARVEL UNIVERSE. I understand these are larger than life characters in cosmic operas but sometimes these things get too damn convoluted. Can't say that I know much about him post say, 2005 or so.
As for GHOST... MAN, that is a character with tons of potential but he's been all over the map. Merc, Anarchist True Believer, borderline psychopath... There's nothing consistent. That said the powers and setting him against Tony Stark are already really compelling given IM's capabilities. I actually really liked the take in the ARMORED ADVENTURES toon. I know it was pretty much a rip off of Slade Wilson's Titans characterization but it worked for me, along with the design and the manifestation of his powers. If I were in charge I would give the current version that sort of take more or less.