Devonshire is by far the best despite the stupid generalisation it's been given on being 'rah central.' If you want to avoid 'rahs,' I'd not bother coming to Leeds in general as they're pretty much everywhere. Who cares.
Anyway, yeah, in lieu of the price (go self-catered), free internet access all year, regular cheap social events/nights out and distance from uni it's definitely the place to be.
Most rooms are also a really good size.