Having been through a number of options I’ve settled on Seal Skizzers as providing the best solution so far for me. This is speaking as a year round road bike commuter and MTB rider not benefitting from hands that naturally feel hot, although I don’t suffer from Raynaud’s phenomenon either. That they seem to be available at a discount relatively regularly is a bonus.
The gloves, like the socks, are about as water resistant as I think is reasonable. None of their stuff seems to have a particularly ergonomic cut (quire squared off) but In practice I don’t notice.
Specifically for winter on the commute bike I’ve just acquired the below. These are only good when temperatures approach freezing as they are really are quite warm. When it was ~3 degrees for a few days on the way in a couple of weeks ago on the way in they were toasty. Their bulk means that I think their use for MTB would be limited, as bar feel would be reduced. I don’t tend to wear a jacket whilst commuting as I find my own sweat makes me as wet as the rain would. As such rain will run in the top of them as has been observed. I believe that they stay warmer than expected due to their windproof construction.
For the MTB and in-between times of the year on the commute bike I like to use their lighter-weight cousin, backed up by merino liners if it becomes necessary. These give better bar feel. I find that wearing a jacket with sleeves long enough to come past the wrist will dramatically reduce the running of water down and into the glove. However, nothing will ultimately stop the gloves getting wet-through after long enough, especially considering all of the additional spray on the MTB. Again, the windproof construction does a lot to keep the warmth in even when wet.