Yea T-Man, Lionel is winning me over... Both of the Standard O scale pieces of rolling stock I bought were more detailed than my MTH Premier Line cars... Then of course with eBay, I can get new cars for much cheaper than their MSRP
I would say yes. I have a Weaver car and it fits fine. The early scout cars from the 40's had something different and that 's why Lionel made a coupler attached to the axles. I do not have first hand experience of the other brands nor have heard any complaints. HO has more of a variety than O scale.
Yea, that is what I currently run, both MTH and Lionel... The couplers are all the same, and I am pretty sure that the MTH Railking line matches up with the Lionel "Traditional O" line as far as size goes too... I know for sure that the MTH Premier line matches up size-wize with the Lionel "Standard O" line...
I am a fan of Marx Trains. My very first set I got for Christmas in 1969 was Marx. I recently sold all of my N and HO gauge trains on Ebay and have gone exclusively to Marx. I'm not into all the realism and being perfectly in scale. They are toy trains, the operative word being "toy". I still have that first set, and its still in the original box.