During the really hot days of summer I wear the Alpinestar SMX-2 gloves... very comfortable, although a little lacking in protection other than the knuckles.
I've been using these gloves for the past 3 years and they've held up pretty well. On long rides, the stitching on the palm becomes an issue of comfort but otherwise I've had no issues with them. They are now faded and starting to tear so its time for new gloves, but I still am considering just picking up another pair of these.