Here is mine --
Season 1 : did not watch all episodes, hence no fav
Season 2 : Rahul Mahajan as comedian
Season 3 : didn't watch
Season 4 : didn't watch
Season 5 : didn't watch
Season 6 : Urvashi - won
Season 7 : Gauhar - Won
Season 8 : no Fav, neutral viewer
Season 9 : Keith sequera... Loved his personality.. I always love calm and composed guy like Abhinav this season
Season 10 : No Fav, but some what support Bani
Season 11 : Hina and Hiten- Best season ever in Bb
Season 12 : didn't watch
Season 13 : worst season ever in BB.. I like Shahnaz though
Season 14 : Rubina and Abhinav.. Rubi Should be the winner