Top BB/EB or MBB for Buyside Roles

Would appreciate any advice or insight into the following situation. Currently a graduating senior with offers from a top BB/EB (i.e. GS TMT/MS M&A/EVR M&A/PJT M&A) and MBB. No idea exactly what I want to do, but definitely interested in the traditional buyside (particularly at more operationally-focused firms) or crossover funds (since exposure to different classes is something that I value).

I understand that I'm in an extremely fortunate position choosing between the two options, but would love to hear from the WSO community. My biggest fear going into banking is that I'll be stuck on the finance side forever and essentially only develop buyout/capital structure skills, while in consulting my buyside exit ops won't be as readily available as they would be in banking. I've definitely considered both the WLB and comp tradeoffs as well, but I think where consulting wins for me is the mentorship/guidance that leadership/senior management gives, something that I don't know I'll get in banking.

Any and all thoughts/comments are greatly appreciated!