Cannondale changed the name of their Windfront gloves to
Slice. Same glove, just a different name. I've used them for four winters now. I have two sets. Large which I use alone down to the mid-20s, and Extra Large for colder, when I wear a set of long-fingered summer-weight gloves inside. This gets me down to around 10°F before I have to break out the lobster gloves.
I like them because they're windproof, reasonably water-resistant, warm, and have a huge snot wiper. They're fairly durable too. In daily commute use, I get at least two seasons out of each pair.
They also have a
Slice Plus glove. I haven't used it so I don't know if it's better or only more expensive.