IMHO if you love maths you should go for engineering. This is where you would apply your maths into fun and challenging tasks like calculating how much pressure can your building structures withstand.

Actuaries deal with risks about peoples and I must say it's extremely boring (for me at least). Be prepared to sit for long hours in front of a computer looking at long list of statistics about peoples.

If you are opting for actuarial science because of the maths then a maths degree would be a better option for you. Actuaries only use simple maths when they work. They are trained by all those vigorous maths because they need a HIGH accuracy for their results as it is vital for the company. And be warned, even if you are applying maths, it's won't be as fun as what usual maths would provide.

Example of work of actuaries --> http://en.wikipedia.org/wiki/File:Excerpt_...003_Table_1.png