The similarities are closer this generation than they've ever been and for the first time, we're seeing diminishing differences between console and PC versions of games.
Sure, with a current build, you will always get better performance out of multi-platform titles (it's a given) in terms of output resolution, frame rate and smoothing effects, but the same big titles still run on consoles and there is no indication that support for consoles will decrease over time. If anything, it's increasing.
Crytek is the most often referenced developer in terms of the most hardware intensive graphics engines, and their current efforts have been squarely at the console market in the interest of expanding their audience.
Crysis came out in November 2007 and yet it still remains the most used example of hardware benchmarking games. And after two years this November, I'm guessing there still won't be a game to raise the bar that requires serious hardware upgrades for most who want to run it.
I can't think of any big budget studios who have announced they're abandoning the console market due to hardware shortcomings because if a PC game can't play on a console, odds are it won't play on any typical PC built before 2006 either.
In all seriousness, the main merit of playing multi-platform games on the PC currently is if you are very particular about the sharpest native output resolution and the smoothest frame rates and are willing to build or buy a hardware configuration that performs to your liking.







