Um I personally think brown eyes are way hotter than any other eye color. Blue would be second and green would be last.
I knew this girl who liked me a lot and she had these really ugly colored contacts it was a combo of green and blue and creeped me out every time I tried to look into her eyes.
So I mean if your boyfriend or your crush likes green eyes then go for it. Its not creepy as long as the eye color isn't eccentric eg: (red, purple, blue-green, or a combination) its fine.