Sullivan James...James Sullivan ... your child is going to be named after a Pixar character? Who also has the nickname Kitty?
I have no right to judge as my daughter was named by her brother after a tree frog in the Toot and Puddle cartoon. (True story, he pointed at my stomach one day and told me Lily was in my belly. I wanted an L name, and it was such a touching moment, so it stuck.) But more people know who James "Sulley" Sullivan is as opposed to Lily the treefrog. So to me that one is right out.
Wesley is one of my great-great uncles. He ended up being nicknamed Wessey as a kid and he was as sweet as Ebeneezer Scrooge before being visited by the ghosts, so that's out too. Also, Wesley Crusher. Ick.
Edwin was a kid that teased me mercilessly in high school. No.
William is boring. Nope.
Linden, will be Lindenderry Dingleberry in school, or he'll be bullied for having a girly name (Lindy is what my grandfather nicknamed my mom) so that's a no.
Kylan ...how do you pronounce that? Kill-an? Kie-lan? Killian? Kili? Be prepared for no one to know. Not fun for the kid. Nope.
So that leaves Adrien. It's a huge name on my dad's side of the family. I have a great-great grandfather, great-grandfather, uncle and cousin with that first name as well as several more men in the family who have it as their middle name. It's related to Hadrian, so it has a strong historical connotation. I like it.