Using the specs I have listed in my profile, I originally had a pretty good hibernate boot time. I'd say <30 Seconds (only by a few).
However, a couple of weeks ago I re-installed windows (I couldn't get the cd-drive to boot in bios to format, so I was FORCED to do non-fresh install), and now my hibernate is extremely slow. So slow that my M3-ATX will shut power off completely before it can completely hibernate. If I hiberate before I kill the power, it'll take close to 2 minutes to enter hibernation. To come out, about another minute, maybe 1.5.
I'm hoping to fix it without doing a complete format. I don't even know if I will be able to cause I wasn't able to get the CD Drive to boot >