Which route is better? ROTC or Early Commissioning?

I've been accepted to Marion Military Institute and another college which holds a ROTC program. Marion has an Early Commissioning program that allows me to become a second lieutenant within two years and transfer to another school. The other school on the other hand has just a plain ROTC program in which I'll do it for 4 years and head to OTS. Both in which, have a scholarship for both. I love both schools, but I'm still debating on which one would be best for me. Help?