Sawyer: 5'11 was about average, 5'5 also average, yet 6 inches was a lot of neck craning. It was all he could do not to just pick Will up at the waist to kiss her. That didn't overly matter though, Willow was Willow, he may draw the line at her being one of those giants from Harry Potter though, or a troll... really the whole reason he was debating this was because of her and that should tell you enough already.
Pierce: He loved being tall, 6' and he could rub it in Will's face all the time. No more Cupcake, Lil buddy talk now, times had changed; his favourite thing is to make fun of how short she is now, and then kissing her before she can point out she is normal and that he is a freak of nature... he will never get tired of doing that.
Darren: Kennedy was a little shorter in comparison to most people. Take himself at 6'3 and he was literally a giant beside her; to his or her disdain, maybe they both just got a little weirded out by it, she was usually assumed to be his little sister instead of his girlfriend. Even so, she was his little ray of sunshine, even if she had strongly voided that nickname the first time he said it with a terrifying death glare.
Jude: 5'3 and 6'2, barely better than her last boyfriend he hears, from Willow. She had to crane her neck to look at him, he had to bend down to kiss her, their relationship should have been a nightmare height wise, even in heels she barely made it to his shoulder; side note, she was not fond of heels so even that didn't last long. But he loved to cuddle her in his arms so that he fit perfectly around her, and really, if he wanted, he could literally have a pocket girlfriend... he would never let Kennedy hear him say that though.
Warren: There was no height difference, 5'9 and 5'10, she towered over him in her model heels, which she also didn't like wearing. He was pretty good with it though, no muss no fuss, and he would never get tired of the way people looked at them together in public, yeah, he was average, and she was gorgeous. She was with him, and people could suck it, cause they were, pardon his french, in fucking love.
Felix: He was in the same boat as Warren with this, there was barely any height difference and if she wore combat boots, which she probably was; this was Sage, let's face it she was. There was no height difference at all, which for the exact same reason, he was pretty okay with. Besides, even if she was the size of a small child she could still kick his butt into next week without batting an eyelash.