Some of these I'd refuse to live without such as beach holidays, football, pizza and sex 
Mine are:
Meat! Not all, I do like some but mostly it's overrated. I wouldn't thank you for a steak however it's cooked. Lamb! just the smell makes me want to vom never mind actually putting it in my mouth.
Someone else mentioned whiskey - same for me, I've tried cheap shit to very expensive and it all tastes like the devils piss! Except in Baileys - I can tolerate it then.
Salmon. I know it's healthy and full of good stuff and I've tried to cook it every which way to disguise the smell of, well, stinking fish and nope can't stomach it.
Ricky Gervais. I don't need to explain further.