Some people will tell you they are easy because they find them......easy.
Some people will tell you they are hard because they find them......hard.
There is no right or wrong answer. It's down to your own preferences, ability, work ethic, tenacity and support network.
A tone deaf person who hates everything that's not pop music and has two left thumbs, ain't gonna ace music A-level.
A person who has a phobia for equations and algebra is not going to get far with maths.
A person who reads only because they did it to pass an exam will seriously struggle with English literature.
General rule: If you like the subject at GCSE and can get at least a high grade B or above, then most A-level subjects are open to you but you will still need to put a lot of effort in and for most people - be prepared for the shock of a far higher and far more challenging work load.