Not planning on taking my boat to the Tropics just yet so PVC is fine in the Solent.
I think the whole Hypalon v PVC argument gets a bit out of context sometimes. It's a bit like saying what is better between a BMW and a Mercedes.
I believe they both do a good job but at extremes one may be slightly better than the other and perhaps after 10 years or so PVC may not be in the same condition as hypalon. For leisure use around the UK where you have a good cover and take some care of the boat I don't think you would notice the difference and engine choice is of more importance.
I know people who have been running PVC boats 365 days a year for years and they're still holding together.
Nigel (I would say this however as I have a PVC boat) Thompson