I guess I can throw my two cents in here...
I have been in EMS for about 2-3 years, only working full-time as an EMT-B for the past year or so. Currently I am finishing up my Paramedic class so I can sit for the NREMT-P exam. While doing this I am also a full-time undergrad aiming for medical school within the next year. So do I think this helps...
YES ! ! !
One slight caveat though: it only looks good/great/excellent if you have done more than simply been in a volunteer service or only worked as an EMS provider for < a year. Show dedication to the field. Let me tell you, it is a thankless job that beats your body to a pulp. But I love it. Strangers trust you to come into their homes and do whatever it takes to help them or their loved one. It is a huge responsibility, don't let anyone tell you different. You really can make a difference.
I recommend getting your EMT-B ONLY if you want to be in the EMS field. We are not like a lot of people you deal with in college. We are intelligent but most of us don't have college degrees or any higher education than our certification (EMT-B, NREMT-P). We are rough, crass, and many times a bunch of a**holes. But we love what we do and take it seriously. Some of us start IVs, cardiovert, interpret ECG, pace, intubate, perform needle decompressions, deliver babies, establish surgical airways, and push some very serious drugs.
but then again what do I know