When I first heard Rain last year, I thought it was quite boring, to be perfectly honest, so I was expecting it to be the next My Interpretation for me (ie. my least favourite song on the album). However, when I heard the clip of the album version a few days ago, it actually made me smile because it was, in my opinion, so much better than the version I heard all that time ago. It just feels like it now has the 'oomph' that I thought it was lacking originally.
I reckon that Mika quite suits dancey/disco-ey music, and would personally have no objections if he ventured further into electronic music... well, unless he went trance, anyway. LOL. Trance bores me, I'm afraid.
EDIT: Oh, and as for remixes, I don't tend to bother with them, really. It's very rare that I actually like a remix.