Worked away for 3 years so out of those that I booked myself
Worst: The Shalimar Hotel in Hounslow.
http://www.shalimarhotel.co.uk/rooms.html
The tag line is Cost Effective Luxury
All the hotels near Heathrow cost an arm and a leg so I had to doss here. Kipped in challet things out back which were noisey as fuck with low flying planes and like a bad Asian version of hi-di-hi!
Also: Travelodge East Lancs road near St Helens. Twas Grand National week could get fuck in Liverpool so had the pleasure of this dive. No door key, TV remote and a dingy, dirty room were just starters. The windows let in the noise of every fucking car and lorry that drove by and I'm not a light sleeper! Disgrace for a big chain.
Best: Summerhill House near Dorchester, lovely place, more of a very upmarket B & B with great views of the rolling Dorset countryside.
http://www.summerhillhouse.co.uk/