Noting the novice PPL bit, I'd avoid Bembridge - lovely place, but never knowingly far from your aeroplane's crosswind limits!
Not tarmac, but Old Sarum is pleasant, does a good lunch, and the grass runway is generally pretty good in Winter.
Lydd, I'd have no hesitation in recommending - nice place, good runway, good food, some pleasant strolls from the terminal.
Shoreham can be a bit busy and you want very sharp RT, but again a nice place to visit and an interesting terminal to have a walk around.
G