I also vote for an old school crochet and leather style glove of good quality. I use several brands, currently the best ones I have found are Activa. The key is leather heavy enough to spread out the bumps. They also seem as though they would provide good crash protection. The are a little stiff, spread the load out. I would buy a more tech glove if I found some that work better, but I get the results I need out of these ones. I have some cheap Nashbar brand gloves that I use for local rides, and they are fine for that, but over long days it takes good materials to keep my hands comfortable feeling comfortable.
A synthetic glove might be better in the rain, I just stay with the leather ones, and even though they are a little soggy, I have yet to get numbness, which means a lot to me.