You know..i thought i'd be able to provide an easy answer but truthfully i'm not sure anymore. I played with my joes A LOT as a child. They were my favorite action figures by far but i also had a lot of joes that i acquired in trade so the adventures and figures i used all kind of run together in my mind.
I wont include Cobra characters because every battle involved every Cobra character i had lol. Destro and Hooded CC saw a lot of action. The figures that stand out the most though simply based upon my the first images that come to mind when i think of my childhood play time are:
1 . Hit & Run
http://www.yojoe.com/action/88/hitnrun.shtmlThis figure at some point started to see a lot of action. I'm confident it was the duffel bag with grappling hook and simple straight forward machine gun that he could hold by its top handle. Man that figure kicked so much ***. I'd rappel him down the couch for a 3 man assault mission on what i believe was the Cobra Bugg being guarded by Desert Scorpions and Crimson Guard Immortals. Hit & Run truly is the ARAH definition of a simple, effective and very fun action figure. He is the Joe equivalent of the Cobra Blue Shirt. He fits in every scenario.
Side Note: Interesting - i Googled Hit & Run and Yojoe and was taken to the modern version of the characters action figure first. An immediate scowl crossed my face upon seeing it. Weird. It was a non conscious reaction.
2. Roadblock -
http://www.yojoe.com/action/88/roadblock3.shtml -
http://www.yojoe.com/action/92/roadblock4.shtmlI recall owning the Tiger Force version which was cool (sans yellow helmet) but i warmed up even more to the 1992 version. A more modern "cool" look and bigger muscles moved him from my top 5 to my top 3 action figures that received the most play time. He'd hold the line behind a blown up Desert Fox against a Hiss tank on his own.
3. Duke - I'm not sure if it was Tiger Force Duke or Regular Duke but it was probably Tiger Force -
http://www.yojoe.com/action/88/duke2.shtmlIt's Duke. Much like Cobra Duke HAD to be involved on some level in every operation
Honorable Mention: 1989 Snake Eyes . Original Falcon , Original Flint , Dial Tone, Mainframe , Budo , Duke v3, and a custom Stalker.
Christ... A Real American Hero = the greatest toy series of all time