Personally I would like to see themes gone for a few series.

I'd prefer harder and longer tasks,ones that even kept some of them going through the night too.
Then allow the natural progression of the housemates interracting with each other otherwise.

I didn't really care for secrets and lies but of the 2,no doubt I preferred that one to 'power trip'
This theme has ruined and manipulated the series all the way through,the way BB has enacted it, and for me it stifled the personalities and natural progression in the house for a good number of the housemates who were in there.

I think power trip.

Although I hate themed Big Brother.

Neither can not stand themes and paranoid housemates

I like them to laugh and have fun and face trully challenging tasks, not like hilarious helen or angry ash.

Tasks used to be brilliant.

Themes are not in CBB and look how good that is