Underrated:
BB10 - There's no other answer to this, I accept that it's fairly popular on here for some but I mean in terms of how many people actually watched it across the country, and the criticism it does receive online, it's definitely underrated. Probably one of the best, most diverse casts ever, it was just let down by production (or rather the lack of)...thankfully the cast delivered and managed to carry the series on their own because if they hadn't it probably would have been the worst series. There were so many good housemates and so many good moments and quotes, the last few weeks were pretty piss poor but all in all it was a really enjoyable series. I also think this house design gets a lot of unfair criticism too, I accept that it obviously wasn't the most expensive house design they've ever had but I actually quite liked it? The living room and kitchen in particular (also liked the fact they were in separate rooms). I actually think on camera BB11's and possibly BB12's was worse. Also the BB10 eye > any other
Overrated:
Erm...I'm not really sure. BB9 maybe? (Don't kill me Patrick

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I mean I did enjoy it but I waaaay preferred BB10. I don't know, I just don't have many strong opinions on it so I guess when people regard it as a great series I just don't understand it, so I could say it's overrated that way?