lexan is nice cause it's flexible and strong as a bull, you can cut and drill it easy, but it scratches like fresh paint because it's "soft". wiping lexan with paper towel will scratch it.
plexiglass AKA acrilic is nice because it's hard and more resistant to scratching but it's very hard to cut, drill, even mount without cracking. special techniques in cutting, drilling, and mounting need to be used to get an acceptable result that will look good AND keep from cracking.