Using the caveat, that they are/were coached by a coach who has insisted on giving them minutes. Melo or Mario? A sort of evil Eminem, if you will. Melo has contributed heavily to a team having the 29th defense in the league, and one of the worst of all time. Mario was a walking turnover who had the ball in his hands a lot as he was playing point forward. Who's worse?
Mario was by far a worse player but due to Melo's gravitas and ability to at times look good while being bad, he's hurt us worse.