I didn't find Estelle particularly interesting either but that is no excuse to reward/encourage someone as repugnant as ben 12 for picking on people he disliked, mocking them incessantly behind their backs, and ultimately successfully alienating them from the social group Estelle was stuck with in the house.
There is no excuse to reward Ben for that behaviour, but those who voted for Ben to win (the majority) would not have done so because of the behaviour you refer to. From my perspective, that's analogous to those who back in the day wanted Big Brother off the air for the uncut shows; the haters were essentially solely disgusted by the uncensored content and used that as justification to argue for cancellation of the whole show, rather than just accept the uncensored content for what it is and/or ignore it.
Ben was up against only Estelle and Layla for the final, and personally I wanted neither to win more than Ben. Estelle bored me throughout the whole show, and that was a huge factor in making my decision. Layla was more entertaining to me than Estelle was, but I still didn't find her character too interesting. As an example, she hooked up with someone whom I thought was the most boring intruder ever outside of Ava (Sam).
Ultimately, the nastiness of Ben did affect how I viewed him, hence why he wasn't my favourite, but around my 3rd-4th as I previously posted. It just so happens that Estelle and Layla, I liked even less - strictly in terms of TV, in real life, probably different.
Whether you want to admit it or not, ben had a lot of influence over that group and he was the main instigator in turning his minions against her with the amount of venom they did. It was so unnecessary and without reason, what made it worse (and frightening) was the fact that the guy seemed to get off the pain he caused Estelle. *yuck*
Yes, he did heavily influence the group. It's not something I need to 'admit', as I watched every episode of the series and explained why I don't think he's the most universally hated housemate. I don't need to argue for, nor against his behaviour. He's just not the most universally hated. Perhaps he could be one of the most controversial, but that's a different matter.
To be honest it's alarming to me that there are many people out there in Australia that saw nothing (or little) wrong in how ben carried himself in the house against people he dismissed as 'meepers' and unworthy of being in his presence.
Refer to above for my thoughts on this - him winning doesn't mean that Australia saw little/nothing wrong with it.
As for the 'meepers' thing, I wouldn't take that too seriously. It is a projection of reality; everybody has people that annoy them, whom they wish would just shut up and leave them alone. Ben verbalized how he felt about such people, perhaps too harshly/immaturely, yes, but nothing absolutely devastating.
No wonder there are many individuals who take their lives at school/workplace when apparently nobody wises up to the obvious signs of bulling leading up to it. It seriously scares the hell out of me.
What about Ben's behaviour would cause suicide? I can definitely see how it is negative, but surely the blame can't be placed solely upon him. If the other housemates reciprocated the behaviour, it is just as much their fault as it is his. It's more the pack mentality that can go along with such behaviour, that is harmful, in my opinion.
I'm assuming that if you were in the house, you would have stood up for Estelle, and taken a stand against not only Ben, but everybody who had contributed to the bullying.