Not the best?
I stayed twice at the Britannia near the Airport. The only reason I stayed twice was because I booked the second visit before I had my first 'experience'.
The Britannia is without doubt the worst hotel I have ever stayed in. The room was dirty, the TV did not work. There was a general aura of decay about the place.
We usually stay at the Ibis on Princess Street or on Portland Street, Failing that the Mercure or Ibis Styles in Piccadilly. If driving, we usually use the Travelodge out at Ashton Moss. There is a tram direct to the stadium.