I was surprised to find that the Baldwin RS12 has approximately the same dimension as the EMD GP7/GP9. I always associated the RS12 with the S12 switcher, as both were 1200 HP. Surprisingly, the PRR entrusted single and multiple unit equipped Baldwin switchers to assignments, that would draw GP7/9 or ALCo RS3s on other railroads.
The Baldwins had their flaws, they were high maintenance, but with their Westinghouse Traction motors, they could really pull a lot of tonnage with a minimal number of locomotives.
The Bowser/Stewart Baldwins are all nice models that run well. While they don't have the same pulling power as the prototype, they work well. Baldwins will be the backbone of my roster, on my next layout, a late '60s urban industrial layout.