Hate to revive an old thread, but I'm also looking into some new gloves as well. I usually just wear my racing gloves, but I also need to replace those after my last meeting with asphalt.
I would definitely advocate for something with some knuckle protection-even if its just reinforced leather.
I really like the Ace and Dezel gloves from Roland Sands, but I wish they had heavier duty knuckle protection. Gauntlet style that can be tightened snugly to your wrist is a big deal for me too.