Difficult to judge as we see Messi every week on Sky Sports, whereas we hardly saw many Maradona games.
Although Maradona did win the World Cup on his own in 1986 so that was some acheivement, and I did see that , he was simply awesome.
I don't count Pele, because his career stats include goals that he scored playing table football in pubs against his two year old children and so on.
FWIW, i vote Messi.