Lionel's my pick. He was a cracker of a housemate looking back at it:

Lionel in the Over 18 Room: "Suck my dick!"
In the Most Annoying Room in the World: "Mildred, is that you?" ... "Go f*ck yourself!"
Lionel v Luisa: "Am I your boss now?" "Selfish bitches."

He did make me laugh and certainly got stuck in for an 82 year old.

Who would you say is the most underrated housemate this series?

I would have agreed on this but he got annoying with his 2 faces and since he has been out knifing Jim and he cannot remember their names and changes the stories. Gone down in my estimation ever since.

Linda, for the fascinating (to me) and total car-crash of a vendetta against JIm.

ETA: and as another poster has observed, without her, it's very probable that Jim Davidson wouldn't now be so likely to win.

I think Linda as it seems to be underrated what she brought to the series, and I highly doubt Jim would have been as popular without her. Lionel is a close second for me, even though I didn't like him I don't think people realise how much he brought to the series.

Lionel was admirably spritely for an 82 year old, but to be honest I don't think there have been any hidden gems this year.

I can't believe there are people voting for Jim.

For me it's Jasmine. I think if she'd stayed away from Lee, she would've survived eviction and gone on to cause more fireworks and controversy along with Luisa. I liked her even though she's unpopular on here.

Luisa

Liz, especially after she left Luisa speechless with her bathroom routine.

Liz, everything that came out of her mouth was either interesting, unintentionally hilarious or just plain odd. Think they could have capitalized on that much better. Instead the edit treated her with wary indifference, never quite sure what character-cliche to portray her as.

I must admit to being flabbergasted that anyone would rate sam or casey as housemates at all let alone them being good enough to be underrated.

Luisa & Liz

Linda. What with the whole vendetta against Jim. It got out shined by Lees love triangle and Louisas arguments with most of the blokes.

Liz. My favourite moment was her telling her Evander Holyfield she'd stab him. It was like some outburst that she couldn't control.

Lee Ryan. he`s proper cult.

Underrated by who? Liz was praised to the skies on the forums and on BOTS so how is she topping this poll as "underrated"?

Really? On BOTS most of the time they were saying she hasn't done much, without even mentioning Sam or Ollie's lack of contribution.

Jasmine went far too early she and Luisa made the show in the first week while bores like Ollie and Sam just sat on the fence.

I voted Casey because I think she contributed a lot to the series but is fairly ignored. But I forgot about Jasmine! I probably would've voted her.

I wouldn't say Luisa is underrated, she is popular with a lot of people.

I think you may have misspelled that....

I put Lionel.

A truly awful person who I didn't even like.
But really, he shouldn't have gone when he did, as I think he was only just warming up.

Liz, probably.

Oops, I put Lionel but I forgot about Liz.

Argh, I hate it when that happens. I wish I'd voted Liz instead now.

Jasmine. Then Liz.