A Level Maths (intl) : Mechanics or Stats?Watch
Statistics will be easier if you're stronger at pure maths or possibly Economics. If you don't take science subjects I would recommend statistics as it will be more useful in life or university than Mechanics, which is only really applicable to Science or Engineering degrees.
I teach both mechanics and statistics, and at school level I would say that mechanics is a bit more interesting. Statistics is very much monkey see, monkey do, and while mechanics is really very methodical I would say it involves a little more thinking.
The other consideration is what other A-levels you are doing, and what you hope to do afterwards. If you are doing physics then mechanics is probably the better choice, whereas statistics might be more useful if you are doing biology. Of course this is an oversimplification, because at university we have statistical mechanics in physics, and in some areas of biology, like looking at how muscles work, mechanics can be useful.
I've previously found kinematics and more physics-like elements of maths easier, but I worry that if I don't take any stats modules that I would struggle in the maths used in bio and chemistry.