Cold hands were my achilles heel with winter cylcing, no matter what I tried, my hands still got cold.
Last year I finally found a pair that did the trick, a gore tex brand on sale from Nashbar. They got me though everything from soaking rain to below zero F.
I tried everything else: PI lobster claws with and without fleece, smart wool or those PI liner gloves. I had a very poor experience with lobster claws.
I tried North Face mountaineering mitts with above luners. Once the liners got wet they got cold and that was it for the day.
Another glove I used with success on short commutes was a cheap brand bought at a discount store. You never know.