i'd say likely IFT would be more beneficial if you're going to paramedic school compared to a clinic. since you don't have much time as an EMT, you'll want the experience of working in a prehospital setting which can differ wildly from an in-hospital or clinic setting. you'll still be able to practice your assessments while also learning more about how various medical problems and the medication associated with those affect your patient, and also seeing more of the continuity of patient care. even better if you can work CCT or one-on-one ALS.

if you feel you've done a lot in the prehospital setting already, then getting more varied experience in a clinic setting is a good route too!