I did both history and geography for my gcses, and history was much more interesting for me but WAY WAY harder. I’m just warning you now, it is a very difficult subject. There’s SO much content to remember and it’s very heavy on the writing/essays etc. If you’re good at english then that’ll make it easier, but it’s a challenging subject regardless. My brain is more sciency though and I’ve always found english difficult so geography came more naturally to me, it might be different for you maybe, but I do think most people who did history would agree that it’s difficult. As I said though, history is way more interesting and geography is just kinda boring. But it’s way easier in my opinion. So at the end of the day, it comes down to whether you’d prefer to take an uninteresting subject that you can guarantee getting a decent grade in, or an interesting subject that is more difficult to do well in. Or if you’re not sure, you could just take both like me lol. Hope this helps.