Leather quality is higher on the Legends, particularly the lining of the palm, which is in fact cotton on the Prestige. That's not to say the Prestige is a bad glove at all though.
My Legends are very comfortable and I do like them, i just wish they had "normal" slightly longer lasting palms on them.
How about the Powerbow Gen X Players ones?
Are they the same spec bar the palm and colour then?
Other than being not quite as long cut in the wrist area yes. Obviously they are black which for me is a big downside to a keeping glove (i much prefer as white as possible) but i did wear TON gloves in black last summer because i liked them so much.