I think grad school would make me the happiest. If I could pick any path it would be that one. I have always loved being a student for the myriad ways it stimulates me. Plus, let's face it, I would kill to work at the college level and this is the path to get there. However, I don't have much confidence in my ability to complete a PhD program. I watched first hand as my mom did it. It's an inhuman amount of work. Don't get me wrong; I know that I'm intelligent enough to do it. I don't know if I have the emotional stamina to run the academic gauntlet. I feel ambivalent about getting in because if I don't, it will take a whole lot of challenges out of my future.
Eh. Who am I kidding? There's going to be challenges no matter what I do!