I've been brewing a lot recently with Nugget for bittering, then using Kent Goldings and Fuggles for flavour and aroma. The nugget is a good neutral bittering hop with a relatively high AA% so I don't need to use loads for a decent bittering charge. The Kent Goldings have a nice sweet, floral kinda of thing going and the Fuggles bring a more earthy, resiny note to the party.
I've been doing quite a lot of English ESBs and IPAs of recent with the occasional stout.
Galena and Magnum are both pretty good bittering hops that I've used with good results. Love Cascade, Centennial, Northern Brewer for certain IPAs, porters and stouts.