He cooked the vast majority of meals for everyone and don't tell me this was "easy for him" or "just acting up to the cameras", he could have either ducked it, or acted like a martyr, but he didn't make a fuss about it, just did it. This was the most practical decision, as he could make tasty meals out of very little.
He's full of positive energy and I'm sure this radiated into the group.
To be fair though, I thought most of them were very positive this year - I didn't see the backbiting, undermining, manipulation etc. that I've seen in BB and previous series of IAC. The confrontations were usually in the open, and then mostly resolved, which is the best way, it avoids resentment festering.
I thought he or Kim would have been worthy winners esp. because of the cooking and the trials that they both put maximum effort into.