I agree this is the best version, currently playing it, the game is huge and the gamepad makes all the difference. But I must warn, having played mass effect 1 and 2 before would have helped a lot, or else the story will maybe be confusing, lots of characters and races/places to take in. If you played at least mass effect 2, then youll be familiar with most of it.
I played mass effect 1 on xbox 360, and mass effect 2 on ps3, I am enjoying mass effect 3 the most, better graphics, love the weapon customization and added things, also DLC on disc. Lovely lightning effects and sound/music.
My advise to anyone not having played the previous, read on the internet about the story and events, the comic might not be enough.