For males my fav is
ENZO. Sounds pretty cool and similar in all latin-derivated languages (and not so-derivated, like english). The way it's spelled and how it looks in the paper is damn cool.
ADOLPH (like that -ph in there) although a little bit infamous and people use to bug you and call you "Hitler". Not recommended in spanish, since very few people in this whole continent are able to remember the right name - it's always or Rodolfo or Alonso (original - Adolfo). WTF?
But it still cool - sounds good, not so common... etc
On females I'm a big fan of the -SSA