Wow, I am actually really torn between this MKVII or HT's MKVII.
The proportions of the super alloy look perfect along with having a nice heavy die cast iron man. I'm not super interested in the HoA so much as I am for the figure itself. I also don't think that I would be displaying the HT version with the BD parts either so missing those wont be much of an issue for me.
Looking at the super alloy batman though shows some issues with the arms articulation which has me feeling hesitant. I may need to see more pictures of this figures articulations before I can make a definitive choice.
I also really wish Play Imaginative would do 1/6 scale for the other super alloys they announced because I feel like having 1/4 IM3 figures next to my 1/6 figures wouldn't feel right. That or HT to hurry the F up with their die cast line! (which is most likely how I will get my hands on all the armors I missed out on)