As with most things, it's just a matter of preference. You have discovered, as others have, that you can't stand them.
I love them! Fingerpicking is a bit more 'slippery', but I'm not inhibited by the Elixirs. As for 'tinny'... a fairly present brightness is generally the sound of brand new strings.
It seems to me that you've become accustomed to slightly gritty, somewhat older strings (not saying that you leave them on for a year, just that after a few days' play, THAT's the sound and feel you prefer). If that's the case, Elixirs may not be to your tastes, that's for sure.
Greg