Borderlands 2: My First Multi-Platform Game

It’s always nice to have a “first” as a gamer. First console, first game, first game beaten etc. I’m coming up on a gaming “first”- first multi-platform game. This September when Borderlands 2 releases it’ll be the first time I get to decide which console I want to get it for.
Growing up, I couldn’t afford having more than one console- I had a Sega Genesis and a 90mhz Micron PC (yes, ninety megahertz) but computer games weren’t really multi-platform and that beast couldn’t really handle much. A second console was too much money and my parents thought I played enough video games as it was. And yeah, they pretty much were the boss of me.
Fast forward 20 years. I was finally able to afford a PS3 last December (already had an Xbox 360) and my platform horizons were doubled. With the fall release of Borderlands 2 I’ll get to decide which console I want to play it on. Over the couple months I’ll be blogging about my decision- the factors going into it, which way I’m leaning and where I plan on pre-ordering the game (which may be a tough decision all the same).
You getting Borderlands 2? Let me know what console you’re getting it for and why in the comments. Help me decide!
I could play it on PC or 360, but I’ll be getting the 360 version for one reason only: splitscreen co-op. I played the original while co-oping with a friend and it was a pretty sublime experience. We later repurchased it for PC and tried to co-op online, but it just wasn’t the same. I’ll take offline co-op any day.