It must be tough to make a glove that grips and lasts. But if they don't grip, who cares how long they last?
Gloves that last don't seem to grip very well. Most gloves made for kayaking fall into this category in my opinion. They're a little grabby at room temp, but who paddles at room temp? Put 'em in cold water and the rubber hardens making them less sticky.
To get a grip, you need a soft, tacky rubber. I like Glacier Aleutian gloves. I get a better grip with these than I do barehanded. As for warmth, I've found them to be adequate when I typically paddle (spring), but they're only 2 mm neoprene. Last time I paddled mid-winter, I found them to be a little chilly. Since they're soft, they're not that durable. Within one season I start to get a hole at the base of the thumb on the non-control hand. They typically last me about a season, maybe two if I'm being cheap.
REI used to sell them, then I bought a pair from Camp-Mor, but I'm not sure they sell them anymore. Here's a few companies selling them online: