RD posted:Lionel Legacy E8s have two motors Odyssey speed control and traction tires on each powered truck. 3RD rail I believe has one motor per powered unit and I'm not sure about traction tires.
I believe if you compare a single Lionel powered unit against a single 3rd rail powered unit for pulling power the Lionel comes out on top every time!
I would challenge you to pop the shells off and take a look at the size and design of the motors and drive systems of both companies. 3rd rail is unquestionably superior and that is why they get my business for diesels. The two relatively tiny motors in the Lionel diesels don't get along well my scale 12+ car aluminum passenger trains. The 3rd rail diesels certainly have the best pulling power in their class (I cringe at the thought of even including Lionel and MTH in their class).
In addition, 3rd Rail's extensive road specific details and accurate paint schemes are top notch due to the incredible amount of research that goes into them. Does Lionel take the cake on sound? Of course they do. Legacy is miles ahead of everyone else. Yet, 3rd rail is getting better as their latest sound sets are not the older RS4 sounds that I believe were in their earlier diesels. Also, with diesels, one must consider running multiple engines in a lash up. The longer the lash up, the more realistic the sound (and pulling power) with 3rd rail diesels as each of their engines are powered with sound. With Lionel, you only get sound out of one engine and the joy of long lash ups is greatly diminished. As far as speed control goes, the latest speed control that 3rd Rail engines have is right their with the Odyssey 2 speed control.
Don't get me wrong, I'm big on Lionel products as they make up the majority of my train room. I have quite a few Legacy steamers; but when It comes to 3 rail O scale diesels, 3rd rail is the clear winner. Don't believe me? Buy one... you will soon find yourself selling off your legacy diesels in order to buy more from 3rd rail.