I can't say these are the best, just my personal favourites in that I enjoyed watching them most on BB, doesn't mean some were necessarily the nicest or best though. Just that they kept me watching more than other housemates. Oops, think I have 21 instead of 20
BB1:
Craig
Nick
Tom
BB2:
Helen
Paul
BB3:
Alex
Jade
BB4:
Jon
Federico
Tanya
Steph
Sissy
BB5:
Dan
Shell
BB6:
Science
Makosi
Derek
BB7:
Looking back now, none of them.
BB8:
Nicky
Although found the manipulations this series so high, only watch up to half way through then gave up on this series.
BB9:
Rachel
Although I only watched bits here and there, but found Rachel the most likeable. Was begiinning to get bored with how BB was being steered.
BB10:
Never watched this series. Totally fed up with the BB manipulations by this series
BB11:
Ben
Corin
Watched this as it was the last UK BB, watched up until Ben's eviction then never bothered with it after that. and glad I did watch to witness one of those rare unique housemates as the Tickle was in BB4, and as in Ben is also from BB11