Theyre not crisper, they have no sub-pixel hinting, making it much harder to read, especially long passages.
Its that kind of talk which puts many people off of macs and apple I think...telling non-mac users why they are wrong and how it should be. Im sorry, I dont need to be told that the PC font is much harder to read etc...I can see for myself...and I can see
clearly that if I was told to read a 30 page document on a computer, I would choose the latter of the option, knowing full well that if I tried it with the first option Id get half way through and have to stop. To most people, they dont give a toss about sub-pixl hinting or any other thing that makes next to sod all practical difference and actually looks like a step backwards, they just want to get the job done.