RE: speaker for marshall avt50 1x12 combo

I am looking for a speaker for the marshall avt50 1x12 combo I play blues, classic rock, and some metal usally the old school stuff. Dont want the speaker to be bright I prefer thick and warm.

ET65 for the most "thick & warm" ... or ET90 for a bit more volume, bottom end.  Or an invader for a bit more midrange.

Is there a speaker in between those speakers you mentioned Vaughn. That may be just the ticket