Whenever I read the books and they mentioned Ron’s height, I always imagined him to be really tall. I started to imagine him as being the tallest boy in their class, because his height was so focused on. When I found out he was only 175cm (5'7") in canon, I was really disappointed; that’s not very tall. I don’t know if his height was influenced by Rupert’s height or not, but I don’t think I can ever imagine him being shorter than at least 190cm (6'2"), regardless of canon.
As requested, here’s a height comparison between the average DC Super Hero Girls doll and the average Ever After High boy doll! Not much difference, but still Harley is slightly taller than Alistair Wonderland™.