The best advice that I can give you is TRY THEM OUT BEFORE YOU BUY THEM.
I have HS Precision and McMillan stocks on several rifles. Personally, I like the McMillan quality the best. Just as importantly, though, the McMillan stock fits me the best.
The Medalist stock is another very well made stock (although not as good as McMillan, but just as good as HS Precision). My personal problem with the Medalit,though, is that I doesn't fit me well. Specifically, the pistol grip portion of the stock is too long for me (meaning that I like having a steeper curve).
Again, all three are good quality stocks, but you must hold each of them in your hands and see which one fits you best.
Zachary