ML pre amps, 380 vs. 38S?

I see they are about same price for used, which one is better? thanks.
I don't think there is any comparison....I've A-B'd them, I like the 380. Warmer smoother more natural.
380 then 380S then '32. 38S can be upgraded to 380.

You have another questions ? Jont and Hotcorocket are right.
Buy 380 and you get the younger used current model.

Good luck
thanks for the reply, one more question, is 380S much better than 380? how does it compare to AR LS25MK2 and SF line3SE tube pre?