With its industrial lines and funky decor, the huge Generator (it has more than 870 beds) is one of central London's grooviest budget spots. The bar, complete with pool tables, stays open until 3am and there are frequent themed parties. Dorm rooms have between four and 13 beds; backing it up are twins and triples.
There is no kitchen, but breakfast is provided and the large canteen serves bargain dinners till 10.30pm. Public areas are a delight, especially the large TV lounge, with comfy theatre-style seating.