Ever last, eh? Give me one for an hour and a mandolin and we'll see how "everlast" they really are!
Picks are of course all about personal preference but I don't like Delrin much and Ultem is the hardest wearing material I've found, but I'm really interested to hear more about these.
Edit (02-28-2012) I've only just realised that Everlast are in fact EB picks! Cool!
I like whatever material the JD Little Stubbies are made out of! Kinda "clicky" at times which is kinda a pain, but I get on better with them than any other Jazz III/ Jazztone pick out there. Anyone tried out V-picks? kinda interesting but they're a bit oddly shaped for my liking!