MBA or MSc. Finance

Hi WSO Community,

I really need some advice at this time in my career, hope to find it here!

Short Sum Up:
I did my dual studies at Deutsche in the Private Equity Department, with a Semester Abroad in Texas. (Overall GPA 3.5)
Then I landed an M&A Job at Deloitte for one year and left to gain more consulting experience. Since then (almost 3 years) I am working at goetzpartners management consulting, a global but small strategy consulting boutique in Germany.

Now I am considering doing my MBA to jump on the MBB or IB BB track, to build the foundation landing a PE Job in the future.
I already have an offer at WHU for an MBA, but after a bit of LinkedIn research, I am uncertain if this is the best next step to take. In my opinion WHU just seems a valuable option if considering a masters degree. Most of the MBB and IB BB people from WHU did their B.Sc. or M.Sc. there and not there MBA. However it is not comparable, hence MBA candidates are mostly from industry and are not leaving for MBB or IB.

Any advice here? A PM or answer would be nice.

Really appreciate! Thanks guys!