The current MTH PS3 locos will operate with a conventional transformer or with a free smart device app in DCS command mode using the included Explorer. There is no remote included in the MTH set if you prefer a physical remote, nor is a remote available for command operation unless you buy the entire TIU/remote bundle separately (about $300-350 at most dealers).
Not fully true. You can get the DCS Remote Commander as a separate item to run the train with a remote. Its a "dumbed-down" DCS system for about $60 (you can probably get a better price depending upon where you get it).
J 611 posted:I would prefer a steam powered freight set as opposed to a passenger set.
I would then say go with a MTH set. Their steam engines put out a lot more smoke in comparison to Lionel.