So is there such a thing as a real ale pub?
OK, so it's not "tomorrow" anymore, but anyway. Yeah, there are loads of such pubs, although some towns will have several and some will have none at all. Oxford, as you might expect, has a good few such pubs - Chequers has about a dozen handpumps, usually with no more than two beers from any given brewery, ditto for the Turf. Then again, a surprising (and disappointing) number of pubs there, including a lot of the really old and characterful ones, are operated by one of the big chains, particularly Fuller's and, bizarelly, Greene King. London has many real ale pubs but they're a bit spread out because of the sheer size of the place. If you're ever here, be sure to check out the Bree Louise near Euston station, the Market Porter near Borough Market and the Wenlock Arms in Hoxton.
I used to work in an amazing pub called The Head Of Steam which had ten pumps, one for real cider and the rest for ales, which rarely had more than one beer from any brewery and never more than two, so that on a good day eight or nine different breweries would be represented. Sadly it's now a Fuller's pub (although they still do guest beers) but THoS is a mini-chain with several pubs in the north, most of the associated with or inside railway stations - Liverpool (which I've been to, very grand), Huddersfield, Gateshead, Durham and several pubs in Newcastle:
http://www.theheadofsteam.co.uk/
Owen, how often are you over here? I mean England generally, not London.