definately check out fabrik, i was there around september last year and it was by far the best club there, be ready to check out some fuked up people though, it reminded me so much of the mix back in the days, people on all kinds of shit, i dont know about the clubs on leichester square they're mainly top 40 but good if your looking to pick up some tourists, word of advice make sure you look both ways before you cross the streets, almost got runned over like 10 times lol