I'm not a huge fan of MP-10, so I've been actively looking for an alternative for a long time. The new MP once again took the worst parts of the cartoon rendering and put them in the design. Prime's torso was never meant to be that short, but he was normally drawn from the perspective of humans or shorter bots, an effective foreshortening that made the torso look smaller from down below. Same for Megs. To design stumpy torsos on purpose completely misses the point...
The MS figure looks ok, and that might be the direction I end up going - they need to narrow that thigh gap a bit and he'd look 100% better. He's a little stocky, but it might end up the best of the bunch. Honestly, I just wish someone would make an MP2.0 scale version of MP-01. I have my original 20th Prime and Faith Leader... I just need one scaled in between with the awesome igear head, and that would be perfect for me. He might not have 2018 articulation, but he's got enough and still looks the best of them all.