"Anti-glare" and "non-glossy" are two separate things.
You can have a glossy display that is anti-glare, and you can have a matte display that has a lot of glare.
I prefer anti-glare, and don't really care at all about glossy vs. non-glossy. The RetinaBooks and the latest iMacs have great anti-glare properties while still being glossy. My old (first-gen) MacBook Pro has a matte display, but has a lot of glare.
Modern anti-glare glossy displays are very viewable, even in direct sunlight, <i>except</i> at a few specific angles (such that would be directing the light directly at my eyes.) My first-gen MacBook Pro is unviewable if it has direct sunlight on it, regardless of angle.