Characters that I have a particular fondness for, I’ll have multiples of. But even then, I’m a bit selective because I won’t get ALL of them. Larger characters like Hulk or Thanos, I tend to only get one of because of their size as I mentioned, and how I determine which one to get all just depends on what I feel is the best representation of that character, but also how it fits into my collection. I for the most part tend to consolidate my collection by film.
For instance, Hulk. Even though the torn pants look in A1 is the traditional look for the character, I have the AoU version. I like the green hue of that version better as well as the sculpt, but more importantly, he fits in my collection being that I have all the AoU Avengers to represent my Avengers group display (part of where the completionist side of me also comes into play in wanting to keep consistency). Same goes for Cap. I’m vacillating between getting EG Cap or not, but the more judicious side of me is saying not to because he’s too similar to CW Cap (which I have). More importantly, I don’t see how EG Cap would fit into my collection because I don’t plan on getting very many EG figures beyond Thanos, if any. Conversely, CW Cap does fit in my collection, because I have him paired with Mk 46 and I like that pairing. I have a solo Cap film display that pretty much consists of Cap’s main look from each film and the villain from each film, and I don’t want to break that up. Even if I did keep CW and got EG Cap, I don’t know where he’d fit in my collection.
As far as Thanos goes, while the IW figure is undoubtedly cool, he doesn’t really fit in my collection because I have no IW figures, and I kind of feel that look is more of a variant look for him that is specific to just IW, whereas the armored version is more versatile because that’s his traditional look and can represent him from both EG and IW, as well as AoU and GotG1, which are the representations I have for those two groups. So not only do I feel that’s the best single representation of him, it also makes sense in my display.