Comparison Which one Agco White 8510 or Massey 8150

[ala17]

We were looking at trading up our oldest tractor to something newer. Dealer has a nice Massey Ferguson 8150 for sale with 3800 hours. At the same time my neighbor has a Agco White 8510 that he is getting rid because he's retiring. Sharp looking tractor and only has 2000 hours on it. Both the dealer and neighbor want about the same price for them. Which tractor is the better buy and what are some of the good and bad on these two tractors?