The Slaters for me. The original bunch of Zoe, Little Mo, Kat, Lynne, Charlie and Big Mo. Stacey and Jean aren't bad but not as good as the original Slater girls. As for Sean, the least said, the better.
They were brilliant but more in their first couple of years with Little Mo/Trevor, Kat being Zoe's mother and Ka/Alfie. I wish Lynne was given more storylines and there was more of the brilliant Belinda.