Flypuppy
A very interesting question.
I guess this forum is pushing emotional responses because we all work or have a passion for the industry so to actually consider which airline would benefit the public again, or resonate with the public it becomes more difficult. They all disappeared for a reason after all!
I would say that the following UK airlines from a brand equity/power perspective could come back and be loved again:
Dan Air
Air Europe
Britannia
Air UK
ps: I miss Jersey European Airways F27's