I'd favor either the 726 or 736 version Berk, or the 682 turbine for steam.
For diesel it would be the 2343 and 2343c which makes an F3, A-B-A combo, or the A-A 2023 pair of yellow UP Alcos.
But then again I have these and more so it's a choice I rather not have to make as I enjoy them all.
Bogie