>>801072What are you doing with them?
General use, i'd say go for the auto parts store ones. They're cheap and work well enough for most applications.
When I was doing oilfield inspection, these were my preference... thin enough to write with, work with tools/keypads/cameras, but still heavy enough to save your skin when you grab onto a pipe carrying 700° hot oil right off the reboiler.
The tire-changer ones I like for climbing towers and "heavier" garage use. A little more durable and snag-resistant than the cheap ones.
Leather gives you more abrasion resistance (the reason my motorcycle gloves are leather) at the expense of losing dexterity.