Originally Posted by GJ0KYZ
You're right about water ingress not being too much of an issue with wet suits and the best of them let very little water in at all. Drysuits are ok but are not intended for long-term immersion; they will allow water in and when that happens you will get cold because of the volume of the suit and the fact that it offers no insulation. I have both a dry and (several) wetsuits for my jet ski and I prefer a wetsuit, especially in the winter.
Have to disagree on that one there are good and bad dry suits some leak some don't. If you look at technical diving or just general diving in the UK you will be warmer and dryer in a dry suit you wear undergarments that breath and take the sweat/moisture away from the skin and trap in the outer layers.
I also use a Othree semi dry (wetsuit) which has tight wrist and ankle seals and a seal around the neck, that allows a tiny bit of water in as wetsuits are designed to allow water in as your body heats this water trapped between your skin and wetsuit to insulate you.
Drysuit everytime, the insulation comes from the undergarments not the suit