As Suggested by Retrogamer81081:   Which Atari 2600 model is your favorite? Heavy Sixer, Light Sixer, 4 switch Wood Veneer, Darth Vader, and Junior. Sears models, Intellivision atari adapter, Geminis, Colecovision expansion module 1's, Atari 5200 VCS adapter.   As per his request the 7800 is purposely not listed.