100,000 threads if you search for London, some very recent. In terms of hotel quality, ignoring location etc, CP City is your best bet.

If you want a useful response, why not tell us why you are in town, where you are going, how big your party is and what matters to you in a hotel - location, room size, free breakfast, hotel age, upgrade generosity etc etc. Because the answer to your question is different for each of the above.