I have used several different yeasts on this grain bill with (uniformly quaffable) educational results. I will routinely use 1056 Chico or 1098 London Ale.
I probably won't do the Irish Ale yeast again. It wasn't bad, and a couple of my friends sucked it right down ;-)
Not familiar with Whitbread, but if you like it on light to midweight pale ales you'll probably like it here.
Yeah, i have some left over from a brown ale that came out really nice. I like that strain and I know a lot of people use it with IPA's, so I think it would also compliment an easier drinking APA as well.