Student or Learner
For the following sentence:
"This is one of my preferred brands", does it mean "this is one of the brands I ever USED" or "this is one of the brands I LIKE"?
Is "prefer" more attitudinal as "like" or behavioral as "use/choose"?
It means it's one you like.
If you have a choice among many things, this is one of the ones you would choose. You prefer it over many of the others.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.