My Fav is G1, season 1. That is the essence of Transformers for me. 1) The Autobots were CARS. With Skyfire being the exception, and he started out as a Decepticon. 2) The Decepticons were, for the most part, jets. Most of Megatron's army consisted of seekers. The rest of their disguises lived up to the name "Decepticon". ex. Soundwave, the cassettes and Reflector. 3) The 'cons had a mission. Raid factories, steal energy, revitalize Cybertron. The Autobots also had a mission. Find the Decepticons, stop the Decepticons. It wasn't all about killing each other like later seasons and the movie. The drop in quality in season 2 was noticeable even to a 10yr. old. 4) With a smaller cast of characters we actually got to know these TFs. Imagine getting to know Ramjet, Thrust and Dirge as well as Starscream, Skywarp and Thundercracker. Megatron had a Space Bridge, he could summon as many warriors as he needed once Shockwave tracked 'em down, but the new Autobot cars needed some explanation on how they were re-united with Prime and co. 5) Great humans like Chip Chase and Dr. Archeville. 6) The stories had elements of espionage with characters like Bumblebee and Laserbeak moving the story along. Also Mirage's sabotage and Hound's scouting ability were put to good use.