How do you decide ?

[KittenMittens]

Seems to me that you could do anything you want, what is your dream or passion. When you get out of the Military what do you want to do on "civee street" your courses will transfer into almost any college but particularly the big three. If you are still in the Military remember that CLEP tests are free so worth considering. If you aren't going to use your GI Bill now then you'll want to plan a degree that you can use that education benefit in the future.

Save the GI Bill money for an expensive program typically a master's level program. That GI Bill can pay for quite a bit in costs including room and board
The New GI Bill - Calculator , but if you use it for a degree that's worth only a few grand, you're really losing out on tens of thousands of dollars of GI Bill benefits. That could mean living in an expensive city, living rent free, getting paid for food, books, etc. so you might as well make the most out of it by going to the best/most expensive (expense informally being correlated to quality).

As long as you keep your grades overall high in undergrad, it won't matter too much where you went for undergraduate for graduate admissions (i.e. an MBA program, MPH, any health degree). Where you do want to focus your time and energy on (if interested) is getting into the best named graduate level program you can get yourself into. There is more reward on investment not so much on where you went on the undergraduate level, but where you went for the graduate level. Again, just keep your GPAs high for undergrad, and you'll be fine.

Also if you're looking to go into the health field, you don't need a degree in science either, just need to typically fulfill a few pre-reqs so you can generally have a degree in anything as long as you take specific coursework (i.e. bio, chemistry, anatomy, microbiology, etc) so don't think that you must major in something science-related in order to make a career out of it.