Best Steam Background

Viola & Kiki(Saints Row: The Third)
http://steamcommunity.com/profiles/76561198068017490/

There are a lot I like, and sadly I've only seen a very small % of them

Some of the ones off the top of my head, Into The Woods is probably my most desired one right now, a Triple Town background. The summer sale KSP background I really like (Skyrim one is nice too). The Reus one I'm using now is purty. I like most of the Magicka ones, as well as some of The Bridge backgrounds. I'd probably round out the list with both the bot backgrounds for Portal 2 and Happy Junk from PixelJunk Eden....yeah big list xD

I like mine too. Garry's Mod : Derp

Wicher 2 foiled backround

System Motherfucking Shock 2. Yes, even Benjamin King pales in comparison.

I'm loving my Vitruvian Songbird.

Some Anna backgrounds, Universe Sandbox and FTL Backgrounds :)

Shaundi from saints row 3
http://steamcommunity.com/id/SoularoS/

Really Big Space