What is the quickest time in which you have completed the game 100%? I personally can't remember from when I finally completed it in December last year, but it must have been at about 800 hours. Then again, I had been playing since October 2004, so it's explainable.
I read once somewhere that R* said that average first time playing thru to 100% would take about 150 hours...then with experience it would take about 50 hours. I agree with that since the last time I did 100% it took about 50-80 hours. Wow...800 hours...I'm at 500 hours on my messing around savefile...gonna shoot for 1000!
No cheats. I remember three weeks of nonstop playing, around 1-2 hours each day. That would make it around 40 hours of game time. This is also the save where I have no trainers used, no wastes, and no busts. It was a pretty committed three weeks, with every step towards 100% planned out ahead of time.