Anything that i've tried that is waterproof, or has much in the way of insulation always feels like there are 2 layers, and they slide against each other. Always results in poor feel of the controls and feeling like i could slip off the bars too easily.
I've just used insulated deer skin gloves. They stay pretty warm even when wet. If it's not too cold you can wring 'em out and keep riding. If it is cold, just put on a fresh pair every so often.
I'm curious about some of the newer waterproof gloves, but i'm skeptical about having anything truly waterproof that is not too bulky or slippery. Can't bring myself to drop $50+ to try what i think i probably won't like.