i started using spalt a long time ago as i read altbier used only spalts for when i made an altbier. i found they hit the spot, and i've been using them ever since. i had a good experience with tettnang in a pale lager once. saaz is great.
spalt is very indistinct in a way, really just kind of hides and is mellow but provides good bitterness, not too spicy/herby i find.