I have 2 FredT plates. AL and SS. I like 'em. Plenty of holes, the hand holds are nice when I have to move my rig around with a tank mounted. The bottom corners on the plates are fluted a bit so it does not dig into your back when gearing up. Not that it's a big deal, but it might help on long walks to a shore dive. And he uses the best corrosion resistent materials. More important though is his customer service. He went way out of his way to help out a new diver, me at the time.
I use an Oxycheq 45# donut wing. Has a few patched pinholes but still kicking.
Again, great customer service here as well.