My MCE remote gives me everything I can think of in MePo, in XBMC I can't remap buttons and only basic navigation and playback works. No context menu support, no zoom button support etc. MePo really shines here IMHO. With every new XBMC release I cross my fingers and hope that my remote has more functions than UP, DOWN, LEFT, RIGHT, OK, BACK, PLAY, STOP, PAUSE, SKIP, VOLUME, but I'm always disappointed. Fully functioning remote (like a consumer DVD/BluRay player) is a dealbreaker for me.
I will keep trying it out though as it's really great otherwise.
Emph
That was a deal breaker for me when i recently tried the new XBMC too, I was determined to get it working but after 2 days of faffing about with eventghost mapping and trying to eliminate double taps I folded and had to give up. Shouldn't have to fart about like that for simple MCE remote functionality.