This one is harder than on the self-titled...it could really go to a number of tracks. I think I'll have to give it a once over before I actually vote.
Yeah, the s/t has a good deal more kick to its sound - especially in the guitars. Those opening licks on "Prowler", for example, just cut like a fucking razor. Killers sounds really overproduced in comparison; the drumming is really busy (i.e. 420 hi-hat beats per minute on half the songs) and those lame-ass guitar wails... they're everywhere!
In terms of songwriting, Killers may be a superior album, but the genericness of the sound really compromises it, imo.
Fuck, this is difficult. There isn't a bad song on the entire album. Hell, there isn't even a decent song on the entire album. I'll have to go with the title track, with Purgatory as a close second.