FirstGroup's First Great Western service and Go Ahead's Thames Railway will slug it out over routes heading out of Paddington. FirstGroup is favoured here also, but regulators may look askance on it controlling Paddington as well as Liverpool Street. One analyst said: 'Great Eastern out of Liverpool Street is a very lucrative route for FirstGroup. 'It serves a very affluent population, so it may be prepared to give up other routes to keep it.'