I vote DA:O it's one of my personal favorite PC games of all time. That being said all three games are great and you should really get them all. --- Drugs are never the answer, unless the question is what isn't the answer.
Wow at people suggesting Rogue Legacy over Dragon Age Origins.
I would personally suggest either DA:O or Witcher 2 - both are great games which have hours of content. I can only suggest that if you get DA:O then you go to Dragon Age Nexus to download some mods for it. For me a lot of mods are essential to get the best experience. --- https://dl.dropboxusercontent.com/u/95696112/tumblr_mpjakcPyVC1rvua2oo1_500.gif https://dl.dropboxusercontent.com/u/95696112/margaery-tyrell.gif
Get dragon age origins ultimate. The problem people had was they went into it thinking it would be the next baldurs gate etc. but if you think of it as the evolution of kotor into a more streamlined system with a very traditiknal fairy tale save the world game its pretty good. And as typical bioware the characters are rather good.
Get witcher if you want a less stereotypical fantasy game. The combat is completely different to 1 but alot of peope find it annoying for various reasons. If you didnt find the story in 1 good enough to pull you through then dont bother with 2.
Rogue legacy is a completely different experience still good but the sort of thing iwould pick up in a humble bundle. But i suppose if you want a good indie and fancy a roguelike then this is the way to go.
All in all get DA:origins and the ultimate editions is worth it as it adds tonnes of dlc and a big expansions called awakening which is pretty big. --- Xbox GT: Zarosian 3DS ID: 1848-2118-1570 Origin and SteamID: Zarosio