My first taste of Rammstein was with "Sonne", so when I brought "Mutter" I was pleasantly surprised.
I can't honestly say there's a song of them that I dislike, or that I'll skip. my favourites, though, are Spieluhr, Links 2,3,4, Keine Lust and Amerika
sadly, i lost my copy of Sehnsucht ages ago, and can barely remember it.