I use these in 5mm
Aleutian Kevlar Glove No idea how they would work with a drysuit.
I find them quite comfortable down to 6C - 7C (43F - 44F), usually do 2 tanks every outing, time from 45 - 60 minutes each.
I found them inadequate at 3C - 4C - called a dive after 20 minutes. I was really surprised how much difference a couple of degrees made. Depends on your personal limits.
Someone recommended these to me
5mm Dry Five GlovesThey seal better, but are harder to get on and I honestly did not find them any warmer.
If I had a dry suit I would probably just go with the dry gloves anyway.