Only two pics in this thread? Man, oh man!
I took an '87 Ironman Expert and an '86 Miyata 912, and built them with 9-speed setups - one 2x, the other 3x. The Miyata:
The Ironman:
My impressions are that both are amazing framesets. The Miyata is a bit stiffer, as mentioned previously, and takes a little more from me to handle fast cornering. It seems to want to go fast in a straight line, where the Ironman has just a bit of an edge in handling. Both feel great when climbing. It would be really hard to choose between the two if I had to give one up. Great bikes!