I wouldn't consider either of those close to Long Beach/LA, but they are probably your best bet if you are looking for a team that would go to worlds.
Pace is in Orange County and probably closer (especially from the Long Beach area), but not up to the caliber of Cheerforce or California Allstars.
What specifically are you looking for a team that would potentially go to worlds, some place to cheer and compete with less traveling, or just some place to stay in shape, make friends, but not with intense competition? Also how far are you willing to travel? Not sure where you are from, but traffic in that area can be horrible.
CA isnt that far theres about 5 or 6 of us that drive from the Huntington Beach area to the san marcos gym for open... its about an hour drive... and WELL WORTH IT