If you hate geography then it will be extremely hard to revise since you have very little motivation to do so, meaning you probably won't revise effectively enough and won't be able to retrieve consistently during an exam.
However, only pick history if you're good at writing. It's already difficult, so if you're bad at essays you're in for a rollercoaster. There's also a lot of content and dates to memorise which you'll have to analyse well in the exam. So if you're bad at writing and/or memorising it probably isn't the best fit.
I don't know which one you're good at or better at so there isn't much I can say on which you can pick, but people tend to do better on the subjects the enjoy. So weigh history whether you're good at and how much you enjoy it, and compare to geography.