I may be the only one, but I like the simple aspect of liberators more than the other stormcast units. I like a lot paladins also.
Yndrasta is a really cool model, the primaris have a good concept and like the miniature, spear-stormy?ok-ish model, even if is really well made, shoulders and legs particularly.
Hope they don't reboot the warrior chamber, c'mon 5/6 years old models aren't old.
seraphon are old, most COS units are really old.