Either should be a good step to a paid career in firefighting.
We seem to hire guys fresh with no experience or other firefighters, but being an EMT already will definitely help you. Every department is different. Try to learn as much as possible about the department where you want to get hired. Good luck to you. You'll love it.
Firefighter, EMT-B, U.S. Marine '92-'96
Obama will prove to be the worst mistake the American people ever made.