This height chart is fan speculation and not to be taken as canon. However, does this match up with how you see them?
Pokeboys Meet Internet
“Why…do so many people pair me with Mei…?” Hugh blushed in confusion, browsing through the pictures.
In the back, Hana giggled evilly, “It’s because you guys look so cute together. Right, Charlotte?” She turned to her Liepard, who just nodded and winked, earning them both an evil glare, and a blush, from the dark haired boy.
“ERMAHGERD HIKARI KARI LOOK PEOPLE ARE DRAWING PICTURES OF US HOLY ARCEUS LOOK AT THIS BEAUTIFUL PICTURE OF BUTTERFLIES AND RAINBOWS KARI KARI YOU HAVE TO LOOK AT THIS; THIS IS THE BEST SITE EVER!!”
Jun screamed in happiness, shooting his head around to look at the un-amused Hikari.