Our cutting-edge research team has just confirmed new gloves are indeed warmer than old ones. With morning temperatures hovering around 9° during my Colorado tour, my ancient Marker racing gloves weren't up to snuff anymore.
I decided to try Marmot's Randonnee glove. The Randonnee is simple, comfortable, and warm, with a waterproof Gore-Tex XCR insert. I wore them through several intense blizzards, and was quite pleased with their performance.
I'll put up a review of these toward the end of the season, after I've gotten to know them better.