As someone else mentioned, the employer match will probably go into a traditional 401(k). Since the Roth is sponsored by your work, I suspect it's a Roth 401(k), and not a Roth IRA. The only real difference is you can take your money out of a Roth IRA at any time, and only pay tax on the amount you take out that exceeds the amount you've put in. In a Roth 401(k) (or a traditional 401(k)), you can't just take your money out unless you leave that employer and roll it into an IRA. But you can generally borrow up to 50% of the balance in your account.
As for which to contribute to, if you're in the 15% tax bracket, I'd probably go Roth. Otherwise, probably the traditional, or at least split it 50-50. One thing to remember is, if you contribute to a Roth, you're paying both Fed and MS taxes on the amount you put in. If you contribute to a traditional, you'll only pay Fed taxes when you take the money out at retirement because retirement plan distributions are not taxable in MS.