Anyone have suggestions for businesses trip stopover accommodation in central London? Something habitual but not insane prices would be good as i need to put up a few of us

Had a visiting colleague stay at the Rathbone hotel this week.  http://www.rathbonehotel.co.uk/

Its near our office, so convenient for our visitors.  Our visitor said it was the best London hotel he'd stayed in whilst on a business trip.

Reasonable rates, decent room size.  West End location.