I believe Proposition 77 would have provided a substantial improvement over the current extreme gerrymandering in California.
A stronger, even more effective initiative should be enacted. It would use a compactness metric (such as BOUNDARY^2 / AREA) to pass or fail each proposed district boundary.
Another approach is to require that maximally compact districts are drawn by minimizing the sum of the lengths of the district boundaries.
Ideally, a computer program would draw the districts to maximize compactness and ignore political party registration data, election return data, and other voter demographic data used by gerrymandering programs.
Take a look at the FraudFactor.com gerrymandering page at:
http://www.fraudfactor.com/ffgerrymander.html
Just using geographical quadrants or at least geographic features for district boundries would be fine by me. We can win fair and square and I do NOT like seeing politicos protecting their "turf" by agreement with their opponents.
What third party stands a chance? Answer: None.
Any 3rd party supporters out there? I'll generally vote repub til there's a viable option but without redistricting reform you need not bother.