Mostly I wear white leather gloves from the hardware store. But it doesn't get that cold here in Maryland. I'm seldom out when it's below freezing. Leather gloves are fine when it's 40F. I sometimes use neoprene gloves, like the Glacier Gloves when it's colder. I don't like gloves with a "grippy" palm because they make twisting the paddle unpleasant.
If McGrady says nitrile gloves work, I'm not going to say they don't. I've never tried them, and he usually knows his stuff. What I will say is that hands sweat a lot. A few years back I found some well insulated winter gloves at the hardware store which claimed to be waterproof, and they are. They are great for a short outing, but if I'm out a few hours they get very wet from perspiration. The insulation is fleece and thinsulate, and they still provide some degree of warmth after they get wet, but the longer I wear them, the wetter they get and eventually they are not that warm. And, unless I put them on a glove dryer, they don't dry out very well. Waterproof works both ways. No water in, no water out. At least with the nitrile over poly gloves, you can separate the inner and outer layer to dry them out.
Goretex ski gloves work, but they are pricey.
Fleece gloves are about my favorite when it gets colder. You can find a lot of them on Amazon. The one's I have are LL Bean and identified as Polartec Wind Pro. The label says they have "digitally embossed synthetic palms," which are now wearing out. Of course, the curse of good gear, applies. The curse is that once you have owned and used the product long enough to say, "dang, these are good gear," you can no longer buy them because the marketing cycle moves on. I just chatted with Laura on the Bean site. Closest they have to my old gloves is
https://www.llbean.com/llb/shop/122...GN3&csp=a&gnrefine=1*MATERIAL*Synthetic&pos=1
I also learned Polartec is out of business. And in reply to my question, "what is primaloft?" Linda replied: PRY-ma loft- A
microfiber polyester insulation that is easily compressible and is treated for water repellency so it retains virtually no water when wet; high
loft-to-weight ratio. Funny about the spelling, because Bean products cite "primaloft," not PRY-ma loft. But it sounds like a good material for around the water.
In summary, my favorite is the plain old leather, uninsulated glove. And I'd love to know the answer to your question, so when you end up with something you like, please post an update.