First impressions of these names? Be as honest as possible.

Alright, nerds, plz gather round my digital campfire - I need brutal honesty. No sugar-coating allowed. Plz give me first impressions (is the name too trendy? pretentious? a horrible idea?).

We don't know the gender (we're opting to be surprised!)

Boys:
Abraham
Ernest
Douglas
Julian (or should it be Julien?)
Phineas

Girls:
Roxanna
Waverly
Francine (but I loathe the nn Fran. Is it doomed?)
Avalon
Meriwether