Being a HT’s IM junkie I thought I should weigh in here. I really don’t think there’s any chance that the Mk. VII or LXXXV (85) will be anything less than incredible. Having said that, you definitely need to choose between classic or modern. If you pick modern the 85 is going to be a great choice but don’t count out the Mk. L (unless the color pallet isn’t working for you). The Mk. VII is going to be an instant hit and probably check every box (at least for me) but the armor is a very old design with tons of angles and hard edges; it’s classic IM through and through!
Yeah sorry, I’m not really sure that helps so I’ll say go for the Mk. VII, you will love the figure.
(Or go for the Mk. L right now and get a taste of diecast, modern, awesome HT’s engineering)