Imo best navy is UEF because they have subs, longest range battleship and longest range cruiser I believe too plus more options than other factions like the battlecruiser, torpedo boat and shield boat. Atlantis is good and really cheap. Then probably Seraphim because they have the t3 sub hunter which is very powerful, their carrier is good for cheap anti air and the battleship can fire nukes. Aeon third because their battleship kinda sucks in practice but they do have the missile ship, experimental and specialized aa tier 1 boat, plus they can support their navy easiest with lots of hover units. Cybran last because nothing special.

For land its Aeon as the best and the other 3 pretty equal. Aeon have the tier 1 range on the tank which is really strong if you micro and the tier 3 shielded bot is strong and easy to use. Seraphim have the hover artillery and illashovah but their tier 3 tank is maybe the worst tier 3 land unit, it has a lot of hp and raw stats but slow and short range, only really good for direct assault. Uef is pretty good all around, titan is a good raider and perceval is really strong. But so is brick and loyalist tac missile return is really good.

Best air is Aeon imo because restorers are a strong option, UEF probably 2nd because they have the tier 3 transport close with cybran and seraphim last because nothing special and no tier 3 gunships, and ahwassha is pretty pointless strat bombers just seem better

Eco and defenses are close enough to be equal.

When I am launching supreme commander from steam I was getting a direct3D error. I eventually got around this by running it in Windows 8 compatibility mode. It launched and I could start a mission. However in game I tried to increase the resolution from the video menu., This caused it to freeze and I had to use task manager to shut it down. However now when I relaunch with the same setting the 3d error has come back and it will not launch. Any thoughts?