I own, 16oz Raja, 14oz Boon, and 12oz Fairtex BGV1. Of the three, I would say the Boons had the best wrist support, as they have more of a western boxing glove profile. However, given that they are all velcro, and Thai style (mostly), they don't have the best wrist support since they give your wrists some flexibility in order to clinch.
I like the Boon's for bag work, feel like their padding is denser than the others, and the Raja's are a little more pillowy, which is good for sparring.
My fairtex gloves are just too uncomfortable for me to even wear, but I may have just gotten a bad pair since a lot of people seem to like those.