Gin has the best eyes in bleach, hands down! the only time we see them is just before his death. Rangiku saw these eyes several times but us viewers didn't see them until just recently (recently if u watched english dub only)
Bleach: The first arc is epic. Awesome characters, amazing soundtrack and epic story. After the first arc it gets pretty crappy though and is full of annoying, boring fillers. I recommend watching the first arc, then dropping it.