Dan,
I agree with Lee on this one, I'd say the scale Atlantic would be at the top of the list. I am a Legacy guy so I do not own any conventional engines but I do have a Legacy PRR Atlantic (Lindbergh) and love it.
About the same time Lionel did several conventional steam engines, 0-8-0, 2 truck shays, K4 Pacific, 2-6-0s, 2-8-2s etc. When I was looking for a Legacy K4 they would pop up a lot. Look in the 2011/2012 catalogs they all looked nice.
JohnB
JohnB, an Atlantic is a 4-4-2 locomotive right? I think I've seen some at my local dealership, they're cool little engines! The PRR K4s are really nice! Is the locomotive in tuscan red, and do you run passenger trains with it?
Dan