IM and MT FTs-good
Kato F-7s and F-3s-good
LL FP-Whatevers-not bad for the time, but dated, any more. Will pull your entire pike up four flights of stairs, though. Seems a bit out-of-scale, too.
B-mann SPECTRUM F-7s- Strictly a 'C' grade locomotive.
B-mann PLUS F-7s and Standard line...