MSU Supply Chain vs. UM Econ (please read before responding)

I know my post is long. If you're going to respond, please do me the favor of reading the whole original post.

I am trying to determine whether I should attend UM for econ (LSA) or MSU for supply chain management (Broad). I spent one year at my community college and will be taking summer classes there, and which classes I take depends on which school I'll be attending in the fall. If I take the right courses, I can definitely graduate with a degree in econ from LSA in two years, possibly with a business minor. If I go to MSU for SCM, I can probably get done in 2 years, though I have not confirmed that.

I want a degree that will set me up in the best position to go to a T-14 law school (big law) and/or a top (5ish) b-school directly out of undergrad. I'm not sure which I want yet so I'm trying to prepare myself as best I can for both tracks. Econ at LSA will obviously be harder than Broad in terms of workload and will result in a lower GPA (probably mid-threes at LSA vs high-threes at Broad) and econ at LSA could also be viewed as a "you didn't make it into Ross" sort of deal. (I've applied to Ross, but as a CC student and not a UM student, my chances are basically zero of getting in. It's also 3 years instead of 2. If I get in, I might post on that later, but that's not the decision I'm asking for input on now.) Law schools care a great deal about GPA, so this difference may seem nominal but could have a real impact when applying to Harvard, Yale, etc.

MSU is obviously very good in SCM, but I don't know (a) how well law schools know this (business too, but they're naturally going to be more well-versed in this kinds of thing), and (b) how much of a role school plays in top admissions processes (don't tell me it doesn't play a role at all, I know better and UM obviously has some obvious here).

Also, econ has a better narrative fit than SCM for law schools; I'm not certain how important that is.

Also, I have spent time at a CC. I did this for financial reasons and forced through a lot of credits while maintaining a high GPA. I don't regret this in the least, but I think this on its own would tip the scales pretty heavily toward LSA given that I'm targeting T-14 and/or business top 5 or so.

Thank you for your input, lengthy and specific/detailed responses are especially welcome. If you're only going to answer one question, though, it'd be this: in my situation, does prestige or GPA play the bigger role? Please do your best to be objective.