I'd say McLouth is the best of the three. Markakis has definitely lost a lot of gas in those legs. He really looks slow in the outfield and has looked that way for a couple years now. He makes the plays he gets to, but his range is very limited. He has an accurate arm, but it is by no means a cannon. Back in '08, he no doubt was a good defender. He still had speed and his arm was absolutely ridiculous. Then, his assists went down, and you could see that a runner here or there would hold up and the announcers would say they are afraid of Markakis' arm. But I don't see that at all anymore. Runners run on Markakis just as much as they would another outfielder. Regarding Jones, I think we can all agree he is way overrated defensively.