Good luck 2017; sounds like you have a good head on your shoulders and a good grasp of your situation so I'm sure you'll make a good choice and make the most of it.
Just want to make a couple of points:
1 - It was pointed out that D3 baseball can be brutal. It can, but that's equally true at many Jucos. Our local JC cuts or redshirts 2/3 of the players who come out, and most of these are legit guys. And of course most of the guys who make the team do not become starters. So there are no guarantees anywhere in that regard. But you know how you match up better than we do.
2 - There's some disagreement above about the value of Juco education. Leaving aside baseball for the moment, as well as the pleasures of being at a 4-year school for 4 years, I agree with Cleveland Dad in that it doesn't matter where you do your freshman and sophomore years if you transfer to a good 4-year school afterwards. But that's a really big if. Using the example of our local JC again, every year hundreds of students transfer to the University of California system, the Cal State system, and even schools like Stanford and Harvard. And like CD says, once they finish at UCLA, Cal, etc. it doesn't matter very much where they started. But getting back to that big if, many thousands more JC students never complete a 4 year degree. No doubt the situation is similar where you are.
So a JC can be a great choice if you're a highly motivated and disciplined student, or if you're looking for a 2 year certificate program, or even if you don't know what you want. But if you want a much higher likelihood of finishing a 4-year degree, you're better off going to a 4 year school to begin with.