I'm another one that always prefers the overnight on the way out to Hawaii to be in LAX (or west coast). In fact, I don't mind how long the first day is (last time it was a very early start and DUB-LHR-MAD-JFK-LAX). A shortish overnight in LAX before a morning flight to Hawaii seems to combat jetlag well for me.

Coming back my one rule is no overnight flight from Hawaii to LAX (or wherever). I've never actually done one of these red-eye flights so I am not speaking from experience (and I'm a pretty hardened traveller) but it looks a bit brutal, even if it does make better use of nighttime being in the air.