I hate wearing gloves... I use fox lightweight ones and I would love to find something more lightweight.... like lycra with light leather bottoms? Only reason I wear gloves is because you do tend to crash a ton more in cross than any other discipline.
I don't even wear gloves on the MTB... SOMEONE HELP ME!!!!!!
For warm weather, the 661 Raji can't be beat. Super thin in the palm and nothing but mesh on the back. Not even velcro on the wrist, just a bit of elastic. For cool, especially if it's wet, I like the Defeet Dura wool glove. They are comfy, the wool continues to insulate even in the wet, are thinner thinner than most insulated winter style gloves, and are tough enough to laugh off a few crashes without ripping.