P-51
I work for Hobby People so I may be a little biased but here goes.
The p51 is a nice plane, and a great deal. Includes Mechanical retracts (magnum) and Aluminum Spinner (Magnum) and seems to be very complete. I'd reccommend going with a larger engine, and changing the fuel tank as the included tank is a little small.
The covering seems to be nice but as with all ARFs theere is some work to be dome on seams and edges. All in all it's not bad. Personally I like the looks of the GP version better but it's got a foam covering instead of Iron-on.
Hope this helps.