For the past 10 years I have used GHS Boomer 10's on my electrics. If you play a half-step low, or detune your top string at times, try GHS Boomer TNT (thin 'n' thick--10-52 I think).
For the acoustic I like GHS bright bronze 11's or 12's, or Martin SP 11's or 12's.
My electric slide guitars get Dean Markley 11's ('cause they come with wound G--gives me a more bottleneck tone)
My acoustic resonator/slide guitar gets Martin 13's