For me, it’s all about cost when choosing between SNA and LAX. Yes, SNA is closer to DL, but for me, coming from Canada, it’s easier to get a lower priced flight, better flight times, and a better chance of a non-stop flight. If you’re taking Uber/Lyft to and from the airport, traffic and airport location won’t matter as much, it’s only cost of the ride that will be the difference. If I’m saving enough $$ on the flights by flying I to LAX, I’m okay with paying a little more for the Uber ride.
In short: I’ve flown into SNA twice and LAX twice...and I’m more inclined to chose LAX now because:
1- cheaper flights
2- better flight times
3- more nonstop flight from where I live