Yay a Cult thread!
This is going to be hard because for many of these songs, I listen to remix/alternate versions much more often than the original/album version. Most, if not all, of these are on the Rare Cult box set.
She Sells Sanctuary: When asked my #1 favorite riff, I go with this song. The song itself, while great, seems rather pedestrian when compared to the Howling Mix or the Long version.
Rain: Another great song, though I always listen to "(Here Comes the) Rain." It isn't much different, just an extended version with a killer bass intro section.
Love Removal Machine: Good song, but I love the "Small Soldiers Remix" version. I don't care for the Peace version, that is my least favorite.
Lil' Devil: my least favorite song on this list.
Wild Flower: Good song, but again there are two alternate versions I listen to over the album one.
Fire Woman: Excellent song, maybe my #1 from this list in terms of album tracks. Two remixes of this song exist but they can be a little bit too long.
Edie (Ciao Baby): Great song and yes the acoustic version is a gem.
Sweet Soul Sister: Another great song, damn Sonic Temple was a killer album.
Damn. This is hard. If I went with album tracks I could easily pick from 3-4. If I picked including remixes/alts (which violates the spirit of the thread a bit), Sanctuary wins, though not in a landslide. I'll go Fire Woman, and feel like changing my vote in the next 5 minutes or so.