I took both at GCSE and my personal favourite was history though geography had some perks.
As you said, geo had a residential trip and though trips are fun, you shouldn't base your option on a trip. I found geography easier than history, most of it is just common sense, especially in paper 3 (eg if gov has less money, they can spend less money on public services). However, there was so many case studies that it was just ridiculous. I'm not sure if it's the same for other schools but my school had 10+ case studies and diagrams that you had to remember off by heart with so many figures and pieces of information in it. However once you remembered everything in geography, you can just write everything you know out.
In history, I found the content so much more interesting and I looked forward to the lessons. Though yes it can be content heavy, as long as you don't leave it to the last minute you'll be fine. You don't actually need to remember all the dates in history, just generally what happens after each other and the ability to twist something to fit a question. However, since there are only 5-6 questions per paper, if you don't have a clue for a question you could lose up to 20 marks but you can easily waffle with the prompts they give you for the higher marked questions.
Both subjects are good in their own way and would be beneficial. Do you know what you want to do at A-levels or in the future?