I took both History and RS and loved it, particularly cause I love essays! The only thing I would advise is thinking about the future - taking a lot of humanities means a LOT of extra exams at the end (from History, RS, Geo in my school it would be 8 exams total whereas for something like Art or Drama, of course, it's less stress at the very end). But it's important to enjoy the subjects throughout the two years so if it is something you are enthusiastic about, definitely take them (a lot of people that I know took two and in some cases people did take three which they enjoyed but it was quite a big workload).