In reply to antigravity1989: I'm guessing if you're students you'll have a months break at Easter. Some suggestions:
Road trip 1 - 2 weeks in N.Wales Snowdonia and Anglesy and maybe A55 sport climbing crags followed by 2 weeks in South Wales - Pembroke with a bit of Gower thrown in. So much variety - sea cliffs, mountain crags, bouldering, sport, single pitch on limestone, volcanic, slate, quartzite. Soemthing for everyone.
Road trip 2 - South West England. Loads to get stuck into on the north and south coasts of Deven and Cornwall, and if there's not enough there then pop over to Dorset. Mainly sea cliff climbing.
Road trip 3 - weather dependent at Easter, but would be my first choice if it is. The west coast of Scotland and islands - Arran, Skye, Diabeg, Torridon, Old Man of Stoer, Etive slabs, Glencoe. Endless choice without the crowds. Good mixture of sea cliffs, mountain crags, sea stacks, single pitch and bouldering. Not so much sport climbing.
If you can I'd try and minimise the driving by choosing a region of the UK to focus on, so you spend less time in the car and more time on the rock.
Traditionally Easter has been the time to head to the sea cliffs of SW Wales and SW England and Anglesey as they get the better weather and dry quickly. However, in the last few years the best weather for some of the high mountain crags has been in March and April and one of the only periods when the north facing high mountain crags in the UK have been dry.