MM IB vs. LO AM

I think it depends on what your long term goals are. MM firms get shit on too much on this website, and can be a great start. Here are the main considerations:

1. What group is the MM in and what equities were you going to research? You can't go wrong with TMT or FIG but if its industrials it may be worse if you dont want to do that for PE. Same goes for equities, researching high growth tech stocks is great, dead/dying retail not so much.
2. What is the difference in working at a LO AM vs at a BB doing equity research? You are doing it from a more purchase perspective as opposed to a trade one, so a different perspective to learn.
3. Public and private equities are vastly different workflows. They lead to different paths and different forms of analysis. Both for future jobs but your own skills, so what do you want to learn?
4. What are you long term goals? If you want to do PE/HF Id say you may the right choice as banking provides more sweeping modeling and analytical ability but if you want to go into AM later it may make sense to start there and get further down the track.

Overall you chose the more general/more optional path so you can always specialize later, but def consider the above.

Probably made the wrong decision, but that's life. You can do great things coming out of MM IB. I'm guessing you go to H/W and got RCG? It recruits from those schools (at least when I was there) and while it's a very hard seat to get, it's quite cushy once you get it.