I've had both gloves, and I feel that it depends on your position. The A2K is best for infielders (unless you play 1st base), and the diamond elite pro is good in the outfield, especially if it's long.
nike diamond elite pro
rawlings Heck no a rawlings is in no way better than a Wilson i have a Wilson a2k and in my opionon no glove in this world besides maybe a akadema would even come close to the amazing Wilson. rawlings are good but Wilson are great
Technically the most expensive baseball glove is the Nike Air Diamond Elite Pro because it costs $400 exactly and the Rawlings Primo is listed @ $399.99.
Wilson
Wilson is nicer in my opinion.
Outfielder's
There really is not that many reputable glove companies. Here are the main ones: Akadema, Rawlings, Wilson, Mizuno, Zett, LS, Easton, Nike, Nokona, Spalding, Diamond, Reebok, SSK.
Wilson
Wilson A2000 infield glove.
Wilson
wilson
The glove that Papelbon uses is a Wilson A2K, more specifically the A2K-0-33 glove you can get it for $299