I love AFM LE had it for like 7 months and I am super impressed with CGC and the extras, large LCD, extra topper etc.
I have owned STLE sold one year ago, but sold to fund RR WoZ would not mind having it back.
I have not played MB too much mostly here and there as a casual play not like a full owning experience, I hear people say it's too easy or not as challenging a lot game. ST has more rules if you consider 6 modes x 3 levels deep.
Need some advice
pros: slightly cheaper but the LE version is one of my favorite Stern pins due to the lighted side rails and the laser, 3 flippers, warp ramp, lots of ways to play, known build quality.
cons: I already owned STLE for 4 years and sold it, I still have SM which is similar layout, the code does have some bugs. I would need to buy the machine now to get the one I want local.
Side note: although I had STLE for 4 years, I never got too far towards the end, I have KM multi ball a few times but not much past that. I think I could make a run at the second wizard mode if I owned the pin again.
pros: would be new (to me) and so all new things to discover, I love AFM remake and MB is from that era and rules by Lyman are probably well polished. I could (probably) wait a year and still get one new.
cons: slightly more expensive, some people say it's too easy.
Side note: I could get the local STLE and still get the MB LE in a year (even if I had to sell STLE probably not much of a loss).