Half the polls out there aren't really reliable at all. I don't think that poll is really a proper true reflection of the public's opinion. But it is true that no matter which poll you go to, you'll find that Nikki has received a good proportion of the votes, so she is popular definitely. I vote for her sometimes too lol, depending on how much she's made me laugh in the week!
Unfortunately she didn't make me laugh too much last week though..