Not much, really.
A GG1 would have been nice because I saw the real ones often. The non-derailing turnouts were a desirable feature. Other than those two things, I felt little pull to descend into Lionelism. The Gilbert Flyers looked sooooo much better, the 2-rail track with rubber roadbed had a superior more realistic appearance, there were plenty of clever accessories, and the synchronized smoke and choo-choo out classed anything that the competition had.
Bob
