If you despise essay writing, take Chemistry. They both fit very well with your choices, however, it all comes down to where you want to take your life after sixth-form. Good luck.
Ive picked 3 subjects which I am happy with which are : Maths, Further maths ,Physics.
For the fourth option I want to pick either Chem or economics.
Chem would be too hard but economics is a new spec for AQA and so everything is new in addition to the fact that I despise essay writing.
What to choose?
Is it necessary for you to take 4? Sounds like you're forcing to take a 4th when you seem not to like the options you have. Better to take 3 and enjoy them and ace them, than have a poorer grade tagging along for the sake of taking 4.