Going along at character creation, I've never had anyone deviate from the Looks, Eyes, Body, etc. bit. "I have a lush body, I wear fetish-bondage gear, I have arresting eyes, all fine." I'm sure it happens, but I'm talking about personal experience - it's never happened, for me.
Names are another thing entirely.
This isn't about "Do you let your players pick names other than from the lists?", because that conversation's been done to death. I'm talking about why they would even want to. For reference, nearly all of my players have selected their own names, using the list of names as a color reference, like how you might scroll over some old-timey biblical names when you're thinking what to call your characters in Dogs in the Vineyard.
No, you can tell a player, "You get to be either a Gunlugger or a Skinner. You get to be either really Hard or really Weird, but not both. You can have this feature on your gun but not that. Are your eyes like this or like this?" And you go on and on, narrowing it down even more, until you arrive at a person. They don't resist! Do your players? Maybe. This was the same when we'd play Vampire, and they were all, "Gotcha, I can pick from this list of clans. I get to pick from these powers. I get these abilities, these skills."
But when you enforce naming conventions, that's when I've seen major contention.
Names means something else above and beyond everything else about a character - at least for my players, anyway. And I've played with a lot of different people! They'll take forever, maybe hours or even days, to find the right name. We're talking having giant lists of baby names in different cultures bookmarked, and going through them in painful detail to find just the right thing.
I found this especially relevant due to AW's list of names, a small selection it wants you to pick from at the start, and my players' insistence on deviating, despite being cool with every other detail.
Do names imply more about a character than their eyes, their clothes, than what they say? Can slapping a bad name on an amazing character ruin things? Does a name have more power than we think? I'm curious as to everyone's stories and thoughts on this.