Small forward isn't the defining position for either franchise.
The Kings have three very solid power forwards in Jason Thompson, Carl Landry and Patrick Patterson. Both Landry and Patterson can score away from the basket, which can be a difficult cover if the Lakers are playing big.
With Pau Gasol at four, the Lakers have the most skilled player at the position. He also has true size but isn't as mobile as the Sacramento forwards.
The Lakers also have an athletic rebounder and shot blocker in Jordan Hill.
Elias Harris and Ryan Kelly are young possibilities off the bench for the Lakers at power forward (both fighting to make the team). Small forwards Williams and Landry can also play at the four spot.
Sacramento has greater depth. The Lakers have the best overall player, unless Gasol starts at center.
DeMarcus Cousins is extremely talented. He's still looking to mature as a player but the Kings rewarded him this summer with a significant contract extension.
The Kings also have noted defender Chuck Hayes -- and can play Thompson at center.
At this point, Cousins probably has the advantage over Lakers' center Chris Kaman. If Gasol is the five, the Lakers have the more experienced, refined player.
The Lakers also have Robert Sacre, Dan Gadzuric, Eric Boateng and Hill at the five -- although Gadzuric and Boateng may be long shots to make the team.
Who is better?
The Kings should improve upon last year's 28-win season, but they don't look quite ready to hit the 40 mark. They certainly have talented players but have a lot to prove as a cohesive unit.
If the Lakers aren't healthy, Sacramento could catch them in the Pacific Division, but the Lakers are counting on Bryant, Gasol and Nash all rounding into form.
Defensively, the Lakers are iffy, but the franchise should win in the 40-50 range.
At full strength, the Lakers are better than at least four teams in the Western Conference, making their floor 11th place.