Personally, its the first thing that gets me.I LOVE boy's who have a blueish hazel eye color and I adore green eyes ...i can get lost in those eyes...their so pretty and innocent looking .they are sparkly as well.
I think that you can tell a lot about a person through their eyes. The subtle movements are the most important aspect to pay attention to.
Eyes can say what lips dare not whisper. but unfortunately people can really play you with their eyes. they can make their eyes look real deep and soulful but their heart is completely empty. But I still believe that the eyes really can be used as a window to another person's soul. As long as the other person is honest.
Expressive eyes, eyes with a slight glimmer , they can be entrancing. I remember a few years back when I was taking driver's ed.. the boy behind the wheel had these amazing eyes. He looked like Jesse McCartney and he kept staring at me in the mirror with those gorgeous mischievous eyes.. probably because I was staring at him.
I love men with deep eyes, in the sense of it looks like the have something important on their minds.. and this this looks good on any guy.. more of a character trait, but as for simply color.. dark brown, or blue!