and Kwanghee's face is all-natural; organic & biodegradable!
Look, I'm not here to shit on the girl, I've done that plenty of times. But I'll be blunt: that's a load of bullshit. She might be slightly more popular in Europe, but she's not the most popular member, not by any stretch of imagination. It's not that the other girls are delusional, no. Rather, I imagine it to be this sort of scenario:
(Cue cheesy flashback music)
You're captain for a dodgeball team, and you spot that one kid who is always picked last. He's a horrid player, but you choose him before anyone else. Why? You know he's not the best choice, but you pity him, and fear he might suicide if someone doesn't boost his self-esteem (read: in this case, suicide would equate to her leaving the group? idk).
I also imagine the above scenario to be the reason why Hyoyeon has any fans in the first place, but I'm sure they'll argue otherwise (if you are one of these rare specimen, feel free to drop a comment).