Wow, with my vote for "PERFECT" the stats show as exactly 50/50.
I've CURRENTLY got a 17" (non-LED, of course) SR, standard 1680x1050. Since your poll didn't specify only LED screens (the title just says "LCD Screen"), I figured I was allowed to vote. The grain visibility on this one is about on par with a last-generation 20" iMac (Core2Duo), which is to say it's visible if you're really looking for it up close to the display, but otherwise perfectly acceptable. The backlighting is as close to perfect on this one as any laptop screen I've seen. On the whole I would even say this screen is better than the high-res I had to return for other (non-screen related) issues.
I'll also say, though, that I ended up with this particular 17" because my last 17" had severe backlight problems (and tons of other issues), and I ended up with THAT 17" because I went through 3 really, really bad 15" screens and just gave up on the current LED screens until they sort out the new technology.
All in all, it took me ELEVEN (count 'em) MacBook Pros over the course of a year to get a good one with no issues at all, but it seems that for me, eleventh time's a charm.