MAN. Usually drive (60 mins M-way) and leave car with meet & greet. Every so often I try to do the virtuous thing and take the airport train (1' 20" regular service). It nearly always goes wrong - suicide on line (missed a flight to BOM with that), breakdown, weather, service terminated etc. - and I have to ring my better half to pick me up and drive me the rest of the way. Pity really, I'd rather train than car.

LAX. Drive myself to & from with a rental. Takes 45 mins or 3 hours, depending.