Which faction to play? Your main faction. Don't spend time on the second faction added you've got time and fuel cells to waste. Autobots or Decepticons? From a story perspective whichever one appeals to you. From an unbalanced game perspective, Autobots. Game Imbalance? See below. 1) Air Strikers - A vital skill. Autobots have 3 (Jetfire, Firefly, Stormclash). Decepticons have 2 (Starscream, Blast Off). If you consider stars it's actually a 9-to-6 bot disparity. Autobots with more air unit. . .sheesh. 2) Number of players - There are about 4 times more playing autobots versus decepticons. Therefore, Decepticons get their bases raid more often. It's more cutthroat to fill alliances and get merc help. 3) Combiners - Superion's components are common. Even with six bots it's the easiest to collect combiner and they all drop combiner spark as 1* and 2*'s. Devastator on the other has two hard to get components, Scavenger and Mixmaster. Harder to make and harder to get c-spark to level. Optimus Maximus both have one hard component in Optimus and Bruticus with me guessing that Optimus is slightly rarer. 4) The fucking HQ - the autobot HQ perfectly hides defenses behind it. Autobot scum. 5) Ultra Magnus - UM superior, Galvatron inferior. 6) Soundwave - Blaster inferior, Soundwave inferior. Really? Soundwave = Blaster? Fuck you Spaceape.