I think that plushies with longer fibres / furs will always just feel softer, like Perry has fairly long fluff and is pretty soft like you said! I think the Huge dragons have a very long, soft fur as well. The Beautifully Scrumptious plush are generally all extremely soft. The bunnies' fur is on the shorter side, so they may be made from a similar material but just shorter! Also, softness is very subjective too! I have noticed that not everyone will agree on what is the softest. I like the Willow colour more but I'm usually not a huge fan of pinks!
