While we are quite rightly commenting on what a **** Maradona was/is. I guess it is only fair to mention that Pele isnt the nicest and has been involved in a lot of corruption, fraudulent businesses and bogus charities. Well, he is either not the nicest or the dumbest given what he has done in the past.
Regarding them as players, clearly they were both special talents (as were some others IMO.) The way I would answer the question is about who I would want on my team. That would depend on circumstances. If I had a good team wanting to become great then I would take Pele. If I had an average team and wanted to become as dangerous as possible and take a big leap then I would take Maradona.