Much of what we discuss is, by necessity, subjective, as we are basing our opinions on personal experience, noted patterns, and anecdotal information, and to some extent, historical data. That doesn't mean it's deceptive, but it does mean that there is information that isn't cut-and-dried due to the number of factors that can affect the outcome.
That makes it more difficult to advise someone asking about LAX, for example, due to the larger number of components involved (distance, traffic, airport flow, accidents, etc). People aren't trying to be deceptive, it's just not easy to give advice without knowing what might come up along the way. But by that same token, I think you can say that there are likely fewer factors that influence how long it takes to get from SNA or LGB simply due to the number of vehicles on the road, distance difference, traffic patterns, etc. I will freely admit that I know almost nothing about getting in or out of LAX, but I do try to avoid it because I'm not used to large airports and it is intimidating to me.
