It's personal opinion, for me the likes of Charlton and Scholes are legends because they were great performers, but what they done off it always respected the club 100% and acted like true professionals.
But for me no one comes close to Charlton, he is just something else, what he came through emotionally and to achieve everything is on another level to what any other player has done on the planet for me. Let alone United.
Statistics are not everything for me when considering legend status, it takes the whole package into account and Rooney falls short for what he has done in the past.