Rusty,
If you didn't do maths a-level you will not be accepted onto an aero eng course. Thats not a bad thing, as its a 'challenging' course even with the maths (like I found).
Do a degree you are interested in, and will do well in. Having said that, as mentioned here; science and engineering degrees are always well regarded, and provide a good foundation for a wide range of careers.
Good luck!
JT8