Well i randomly thought to myself "I wonder what bus is the most common in the UK? Maybe its Enviro 200s, maybe its Geminis". From a personal standpoint I would assume the e200, even prior to becoming interested in public transport whenever I thought of a bus id think of an e200 but then again I do live in a pretty single decker dominated part of the west midlands. If anyone has any clue on what the most common bus In the UK is I would appreciate it. 
