How does Batman: Arkham Asylum for PC compare to the PS3 and 360 versions?

Do they differ at all? Are they the exact same game, but just for another system? I just want to know so that I know whether or not the sequel (Arkham City) for PC will be worth buying for PC or to just play the 360 version at a buddies house (since I dont have a 360 or PS3) which I'd rather not do.How does Batman: Arkham Asylum for PC compare to the PS3 and 360 versions?
They are the same. They don't have time to make different games for PC and Consoles.How does Batman: Arkham Asylum for PC compare to the PS3 and 360 versions?
Batman: Arkham Asylum is third-person Action-Adventure game that delivers an authentic Dark Knight experience rooted in an original and engrossing story as well as a combination of melee combat, stealth, investigative and speed-based challenge gameplay. A sequel to 2009's Batman: Arkham Asylum, Arkham City features the full range of classic enemies seen in the previous game, in addition to Catwoman, who is a playable character and has her own storyline in the new release. Additional features include: a range of new gadgets, an increased number of possible melee opponents and a range of movement options for Batman that include leaping, sliding, gliding and the grapple hook.