I care about 1/48. I wasn't a fan of toys this size until I saw the detail and complexity that can be packed in. The 1/48 Hikaru VF-1S w/ strike packs is one of the best toys ever produced in my opinion. I would love to have some other valks in the same general size (not necessarily the same scale).
I enjoy my 1/60 & 1/72 collection as well. They are a decent size, have decent detail, feature quality materials and have decent amount of complexity. Any valk that Yamato puts out that has good quality, good detail and minimal parts swapping will get my interest. I'm not a fan of extensive parts swapping since I like to look at the jet and know there is a robot inside, not that there are parts that can be used to make a robot sitting in the drawer.
I agree with VF-1 guy. It was the 1/48s that drew me in. The 1/60s were ok. I know bigger isnt necessarily better but looking at this, it is certainly the case.