I would alway recommend a sedan/limo service even though it is more expensive in Southern California (this is for 1 person, at 3 people or more, the price is almost the same and sometimes cheaper!).

The Stupid Shuttle (as well as the others) will drive around the airport until it is full.

Also, most of the 'cheap' rides such as suttle and cab (not so cheap) have awful vehicles that seem like they are going to break down at any minute and terrible drivers that rarely display any concern for safety.

f