Same here.Personally, I use both WMC and XBMC. WMC is what I use for live TV (Ceton InfiniTV 4 card) and XBMC for everything else. I have an icon in WMC that automatically loads XBMC for me and then reloads WMC when I quit out of XBMC.
WMC does have a couple pretty good movie listing add-ons. MyMovies I think is one. They're simpler than XBMC, but some people might like that. I forget why I didn't like it. I think it was something with the scrolling being choppy or slow or something. The main thing I liked is highlighting for instance a TV series folder and another box shows all the episodes inside. I haven't seen any skin in XBMC be able to do that in that way.
XBMC has multiple ways to sort files that can be pretty daunting, but if someone doesn't need or want overly fancy stuff, they could just dump all their files into one or more basic directories and just scroll through them similar to a typical file manager.