Two things:
1. What sillyoldman said about OutDry – consistently the best waterproof glove solution out there for the reasons he says. Gore-Tex gloves allow water to pool between the big, floating waterproof membrane insert and the outer glove. Pearl Izumi is the only cycling brand I know using the technology, but Mountain Hardwear use it in outdoor gloves and some of their gloves also work okay for cycling – their Epic glove with a liner for example.
2. The other thing with Gore-Tex gloves is that the floating lining slips around, so when you grasp a handlebar grip, it can feel like opening a motorcycle throttle as the outer glove is static on the grip and the liner and insulation moves relative to it. Disconcertingly vague.
3. The thing about gloves having a big hole in the top for your hands to go in. Yes, but if you have a well-designed jacket, the cuff will overlap on the outside and stop water running into them.
Anyway, I’ve found OutDry significantly better than anything else I’ve used on a bike and off it. I’m sure it’s not the only viable solution, but it’s the best ‘conventional’ glove, erm, technology I’ve found anyway.