Most of the time, BB has this thing where the person evicted in the eighth week is one of the biggest characters of the series, and once they leave the tone of the series changes a lot. Along with this, they're usually pretty polarizing housemates that divide opinion for most of their time on the show. There's a few minor exceptions like Rachel in BB11 or Zoe in BB15 but besides that it's a common trend in the series which I dunno whether people noticed or not. I didn't include anyone from BB17 or BB18 since both were only around 8 weeks long. You can rank these or just name your favourites, it's up to you, but for now it's just this crop.