The best site we have found for all round family enjoyment is Beverley Park in Paignton. Even if it is wet for the holiday there is always something there for the children. There are both indoor and outdoor pools, large variety hall with first class evening shows designed for the children until 9:00pm and then more for the adults but by no way close to the mark comedy - all good clean entertainment. There are also good cafes/restaurants on site. Children are kept occupied throughout the day/evening. The toilet/shower facilities are aslo first class.
The site is very central for Torquay, Paignton, Brixham, Dartmouth, Totnes and Newton Abbott. Just passed Dartmouth is a beautiful stretch of beach at Blackpool Sands and slightly further on is Slapton Sands.
Now the down side - the site can be expensive during high season for a family. However with all the facilities on offer if the weather should be bad I would reckon it is good value for money.