In reply to tonanf:
Well, Spain's a big country! And the Continential ethos is very much to have routes of all grades, if possible - so, if A wants to be on F8c and B wants to be on F4, it can still work fine.
But... I'd go with Full Stottie. Costa Blanca is very much Spain without tears (or, sacrilege, the UK with much more sunshine). But, as it's not actually the UK, it's kind of nice to try a bit of Spanish. Doesn't matter if you're crap (I am!), they don't mind and they'll still appreciate the courtesy.
Yes, as Full Stottie says, avoid the Penon d'Ifach (my first route in Spain was on it, memorable for the necessary speed and interesting as I was with a certain lady famed for her prowess and slowness).
Echo 1.5 is worth a visit. Never was a crag more wryly named. The routes are innocous but the setting is splendid. And the little crag just below has lots of crimpy little routes if one of the party wants something harder.
Mick