I like 'em both.
Ravenna is admittedly frilly goth, and that's what I like about it.
Raven is so...I don't know, "dumb" sounds mean, but it's so blunt and obvious that it's got a weird flatline personality I really dislike. It's so one-dimensional and tropish. Like,
Storm, Rock, Tree,
Raven. Ok, yeah. Words are good. Anyways,
Ravenna has an elegance to it, a civilized development about it that makes it not so...dumb.
Sidney is a name I really enjoy and wish I could warm to more. It's the name of an ex-friend so it's a bit tainted for me, but I love the idea of a male
Sid (or Cid. But how would you spell the full version of that? Cidney? That looks awful). It gives me warm fuzzy video game nostalgia.