This should be fun reading!
I have two hoods, a Harvey's and a Diving Concepts, and I don't like either of them a whole lot. The Harvey's pulls on my jaw, the DC had to be trimmed to fit around my mouth and now doesn't sit very well. I'm lusting after an Otter Bay hood. I have friends who have them and swear by them.
I just got a Deep Sea mask which DOESN'T leak! Definitely convinced me that it's worth doing some serious research on masks, and that something that seems to sit well in the shop may not be satisfactory in the water at all.
My doubles regs are Scubapro MK25/S600s and I love them. I have a chance to breathe off other people's regs on a regular basis, and I haven't encountered anything I like better, and a few I don't like anywhere near as well.
I have an OMS aluminum backplate and a Deep Outdoors 40# doubles wing. I've only tried two doubles wings (the other was a Halcyon) and I couldn't tell any difference.
My singles rig is an Oxycheq plate and a DSS wing (or, for the tropics, a Kydex plate with the DSS wing). I really like the STA-less design on Tobin's wings.
My hands-down favorite piece of gear is my Salvo 21WHID. It's like the pearls with the little black dress -- the outfit's not complete without it!
For exposure protection, I have a Mobby's trilaminate dampsuit, which is nice for mobility and for travel, and I have a Diving Concepts 2mm compressed neo drysuit which is VERY warm but makes reaching my isolator a project. Both suits have latex seals, which seems to ensure that I never actually have custody of both of them at the same time.
Fins are Jets. They fit on my dry suit boots, and in warm water, I wear a pair of Chuck Taylors with polypro socks under them, which lets me use the same fins. Looks funny, works great, and unlike most scuba gear solutions, it was cheap!
The above outfit is accessorized nicely with a Vytech and an SK-7 compass, both on matching Deep Sea Supply wrist mounts.
In the black dry suit with the orange wing, I'm elegantly turned out. The blue and white dampsuit with the big black pockets on the legs is a little bit of a different look -- Kind of grunge scuba