Small World is absolutely an E Ticket for several reasons: It's original. It's lengthy. It has a unique design aesthetic that is present in every AA, set piece, and prop.
Hall of Presidents has 43, highly-detailed, robot presidents and incredible emotional impact.
Spaceship Earth is a massive trip through time with each scene packed with detail and beautiful staging. It is the definition of E Ticket.
American Adventure is a wonder of engineering and technology.
7DMT is a C Ticket that, for some reason, people love. Still, one incredible show scene does not an E Ticket make.