Prolly would leave them in that order at the moment. Though I like Stewart long term more then McPherson. Also some question if Stewart will stick at 3rd or be moved, time will tell and he is in only Low A right now. The last 2 could prolly be switched just on preference, neither are that great of prospects IMO.
I'd go Marte, McPherson, Wright. Don't know enough about the others to say. Marte has the ceiling to be at least a very, very good 3B and McPherson is on a superhuman tear at the moment that I would say justifies a higher ranking.
I like McPherson. Looks more and more likely that Glaus will not return next season and Dallas has been tearing up the Texas League (AA). If he plays well next spring, he should set himself up like Bobby Crosby did this year with Oakland and the transition without Tejeda. Of course someone like Chone could change all of that next year.
But to tell you the truth, I don't know enough about Wright. In fact I don't know anything about him so I could (and may be completely) wrong.
"Relievers are like volatile stocks. They're the one asset you need to watch closely, and trade for quick profits." --Billy Beane
I'm curious as to how people can say McPherson is a better 3b prospect then Wright. Is this McPherson hot streak just going to your head? Cause Wright's whole time at Double A was a hot streak, not just a couple weeks. Seriously I can't find one aspect of McPherson's game that is better then Wright's. Wright is younger, hits for better average, better speed, and a much better walk to strike out ratio. Oh yeah he has less errors too. If you feel I'm overlooking something I'd really like someone to point it out as to why you think Wright isn't better. The only thing McPherson has the edge on is power, which should be expected since he is 2 and a half years older then Wright.
I'd also put them in the order you listed them, with the possibility of Ian Stewart moving up the list if 1. he stays in Colorado and 2. He stays at 3b.
Oh, what the heck. I'd put him above McPherson at this point, poised to pass Marte as well, though he's farther from the majors.
1. Wright is the best. He tore up AA and got promoted to AAA
2. MacPherson was mostly a pitcher in college and is learning to play 3B and has improved his fielding. Compared to Marte, also at AA, MacPherson is hitting 70 points higher and has twice the HR's and RBI's. He also can steal some bases, though not as good as Wright. He and Marte strike out at the same rate.
The Coors factor could be huge here. Stewart is going to be a star if he stays in this organization. Comparisons to Chipper Jones already, and if that pans out, his numbers as a Rockie will be mighty impressive. Still three years away, though.
Wright is impressing more with each passing day, it seems, and he's at least 4 tools plus, if not five.
McPherson looms as the big power guy of the bunch, though he might not hit for the big average.
Marte has all the tools according to the experts, but thus far his potential has blown away his production.
Encarnacion, Hart and Harris are all nice prospects, but don't project as high.