I have nothing against Lewis myself. I don't think he's great looking, I don't like his big ego, but with regard to him in the house (as a person, not as an extension of Marnie) he seems fairly polite and easy to get on with most of the time, most of the other housemates like him (I think they nominate him mostly because they can't nominate Bear, which wouldn't have been a good reason in Ye Olde BB Days

).
I know the showmance is cloying and sickly, but on the whole I don't have much objection to him as a person. He's just not very interesting.