You will want to avoid Lionchief Diesels. Lionchief Plus are a significant improvement. The non Plus engines besides having questionable construction come with tiny motors, some only have one of those, and others come with even cheaper motors between the truck frames. Lionchief Plus have larger motors used in 90% of all other Diesels on the market and metal gears.
MTH Railking and Williams engines are well built but now MTH has an uncertain future. Williams would be trouble free but are only conventional and don't come with track and transformer.
Pete
