Folks keep reiterating how much better of a chance a weaker player has at 8-Ball.
I used to think so too. Watching the IPT matches pretty much dispelled this myth for me. The lesser skilled players didn't last very long. Strickland's performance at the IPT showed how important strategy and knowledge of patterns are in 8-Ball.
Instead of looking at the 9-Ball scenario where the strong player runs to the 6, misses, and takes comfort in the fact that the weaker player can't get out from there very often, look at it from a full runout point of view. The more skilled player runs to the 9, then rattles it in the hole, or worse, scratches in the attempt. I have both won and lost many games because of this very thing. In 8-ball, if I run all my balls and rattle the 8, the other player is not handed a virtually automatic win, but still has to make 5 or 6 called shots before winning, an effort which might be more complicated by the fact that the 8 is partially blocking a pocket. While it's true that a decent player might have no trouble doing that, it still requires considerably more execution than the 9-Ball scenario.
Then there are the 9-Ball breaks that roll the nine near a pocket, and leave a combo, or worse, roll the 9 to a pocket and then scratch, leaving a plum combo - a situation with no equivalent in 8-Ball. Ditto the 9-Ball on the break. Add in the slop factor, and the scale tips noticeably in favor of 9-Ball being the more "lucky" game.
Ken