I used to use Briess 2 row Brewers Malt for my IPA's. I switched to a local malster West Branch about a year and a half ago for my pale base malt on a suggestion from Rob Stein (I also won a bag of it in a homebrewing competition). I really like the malt and I think it makes the malt flavor in my Amarillo IPA pop a bit more. Their malting facility is only about 20 miles from my house and they use locally sourced barley for their malts (I like buying local when I can). It tends to have a slightly higher protein level than some of the West Coast malsters because of the difference in growing environment, but that is not a problem for this beer and I really don't get any haze from it.
For English Styles, like Porters, Stouts, ESB, and Irish ales, it's Crisp Maris Otter, since it is 100% Maris Otter barley and not blended with pale malt like Muntons is. Although I sometimes seem to get a bit lower extraction from it, I like the flavor profile it imparts into these beers.