If you take very good care of your paint, I would say milano red. When washed, waxed, and cared for properly it can and will look awesome. After time and neglect it will fade and turn pink. So it really depends on the time you are willing to spend on detailing. Then again, black is a real nice color when taken care of also. With black you get to take pictures of mirrors. =P Red is much more flashy so it depends on the attention you want. Right off though, i would have to say go with Milano Red.
right now its granada black peal but the clear is almost all gone and i had to get a new bumper and i still need a driver side fender. it also has a hole just above the door and roof rubber. its a bullet hole.