I just watched this ep and I'm really happy with it, undoubtedly because while I'm not really a member of denialcorp, I want Lex and Clark to be friends on the show and CLex goodness on screen. And this ep delivered beautifully.

( Spoilers for Smallville 2x15 Prodigal... (not a synopsis or anything, more like squeeing, probably won't make much sense if you haven't seen the ep) )