I do both geography and history and I can honestly tell you both of them are a lot of work and a lot of writing. If you prefer history then I would tell you to go with history because at the end of the day it is all about the work you put in and how much you study, not how your teacher teaches it. I would definitely count history as one of the most interesting subjects as you always learn something new whereas with geography it is nearly the exact same as the junior cert course just a bit more detail and a few more chapters. The history course is nothing like the junior cert course for first or second year, but everything you learn in third year is really relevant.
geography is much easier in my opinion. but then again it might just be my teacher. they both require the skill of "learning off" so its the same thing. whatever grasps youre interest is better tho as its easier to remember. and choose what would be useful for life skills. if youre going to be a meteorologist than do geography for example.
I did both history and geography for the junior cert and for me personally the minute I started history I hated it. I worked so hard at history and it always seemed like it was an upward battle and the work I put in never seemed to pay of. Where as for geography I found that minimum effort was requires for me to get a reasonable grade. I also found that to me geography was more interesting and I could understand the information a lot more easily. But really it comes down to personal opinion because I know that there was people that felt the exact opposite as me. But a piece of advice is that if you are going to choose one of the subjects as your experience of doing them in primary school DON'T as the syllabus is completely different and the topics covered have nothing to do with what you did in primary school. Hope this helps!