On my tubular track layout with 031 curves and 022 switches, my diesels tend to be my best pullers. Because of my reverse loops, my maximum number of train cars is 11 plus caboose.
My steamers tend to be good, but not great, pullers. Traction tires tend to wear out faster on my steamers than on my diesels.
I only have a few electrics including GG1s and EP5s. They tend to be very good pullers because of their heftiness.
I have a few Williams engines, mostly diesels that are great pullers. The owner of my LHS says they have big dual motors that make them great pullers.
My postwar Lionel locomotives with Magnetraction tend to be very good pullers, especially the F3 diesels from the early and mid 1950s, but my modern ones with traction tires tend to be better pullers.
My modern diesels that have speed control like DCS and Legacy and traction tires are great pullers.
How about you, what has been your experience regarding the pulling power of your locomotives?
Arnold