I don't know if this conversations will be well welcomed here, but I have used Construct 2 and I can tell you that the whole program interface feels very "filmsy" and "cheap" compared to MMF2. It's like it is running on a virtual machine or something, it lags a lot and the performance was not good on my computer. This detail alone made it not worthy for me, I was having a hard time scrolling the level layouts and switching between windows because all got choppy easily. I got quite a few bugs too on the program interface.
MMF2 feels solid and like a native program. The rest is very similar, I won't say Construct 2 doesn't have its own good points, it surely does, but I'm sure Clickteam Fusion 2.5 and F3 will address some of this features and will be a superior product. CT Fusion 2.5 is around the corner, so I think you should wait and try it.