I use and have all three. All have drawbacks and all have advantages.
The thing I dislike about wet suits is unless you have a heated RV you will always put it on and take it off in whatever weather is happening. Rain, snow, cold, hot, etc. You can get some of the really soft stretchy kind that aren't much harder to put on than a pair of jeans.
The dry suit, for diving, is not fun to get into or get out of. It's a little tough. If you don't buy front entry you have to have somebody along to zip the two zippers in the back shut. Then somebody has to unzip you to get out. Smart Wool for the first layer then polar fleece after that and you can adjust the amount needed to stay warm depending on the weather.
Waders are fine in calm areas and are the most comfortable, if you are using the breathable Hodgmans or something like them. The neoprene waders are just like wetsuit bottoms for the most part.
All three have the same problem with human waste material. In an emegency, I would warm my wet suit. Had a guy I dove with all the time who had medical problems and always warmed his wetsuit. He had no choice. Nobody rode with him on the way home and he immediately got into a shower. Then he cleaned the suit. No matter. I wouldn't want to crawl into it.
The major advantage to the wet or dry suit is it extends your season a whole lot. Jim