I would say Freshwell in Croyde, basic but ok with a great sea view and right on the beach. One of the more reasonbly priced sites by Croyde standards, not very level though unless you get a spot at the bottom edge. No hookups.
I also used Surfers Paradise great beach access but again very expensive for a no frills site. Charged me £25 a night for a tent last time I was there and another £5 a night to park my motorbike. No hookups and we've had some issues with cocky young staff there to.
Both of the above are a couple mins from the shore. Freshwell maybe 2 minutes, Surfers about 5.
I love Croyde but I think its became a victim of its own success its just too over crowded in season these days. Even Putsborough is now charging £8 just to access the beach...
Ruda is a nice site (they own pretty much everything around there anyway) if you want more facilities and a hookup (if any are available) expect to pay over £35 a night.