Organic.
Because of the bees.
Bees are dying all over the world. It's terrifying. Without bees we will simply lose a half our fruit and vege varieties. We can possibly grow the same weight of food but variety is also important.
Organic farming helps the bees. Whilst not all non-organic farming is responsible for bee die-off there are certainly chemicals in use that are.
And Monsanto - Monsanto chemicals and GM crops are increasingly part of the non-organic landscape.