But okay, tbh if I were 9 now and had 25 years' of Transformers to choose from, my list would only go back as far as Car Robot/RiD. Anything older than that wouldn't appeal to me if I were a child. For example, I enjoyed GI Joe ARAH as a kid, but I've never been into any of the original Joes. I also enjoyed playing with Lego but I wouldn't go for any really old Lego sets.
If we're to assume that all 25 years' worth of TF toys were amazingly released in only 9 years (!!!) then my list would stretch back to G1. It all depends on whether or not I experienced G1... as an infant.

So under that assumption my original list would be the same. Well, may not Aaron Archer's job. Replace that with G2 Hero Optimus Prime (or G2 Sureshot).