New Ad! I found this unusual ad in a 1981 issue of the Marvel magazine Bizarre Adventures.
The answer to the question is Hulk, of course, when it really should have been Captain America. Although a treasury-sized Batman Vs. Thor book has its possibilities...
Looking at this now, it seems incomprehensible that an ad for The Comics Journal would be so superhero-centric.
Sorry for taking so long between updates, its been a little harder than usual finding treasury-related material!