Make a difference in what? Lol. Just looking better? All around I think people in general look best in a darker wash of jeans. Black is good too, I have some black jeans. Black jeans look good on lots of guys, but I think it depends more on their overall style.
Any color really, as long as there fitted and isn't hanging down your butt where I can see the outline of your bootycrack between your boxers. Also depends on the color coordination between all your clothing pieces you're wearing.