I finished the Dragon Age saga yesterday and I must say that it was the best rpg I have played so far.
Dragon Age Origins has a much better questline and a better and more interesting environment, thought the combat and the characters are better in part two of the saga.
Whole Dragon Age II takes place in one city and every now and then you can go to the coast or to the mountain pass. Not much variation. But the main character (your character) has a voice and your companions and other key characters are much more interesting then in Origins. The combat system is awesome! Especially the spells you cast as a mage are so cool!
Though the story line in Origins is way better! It's a bit cliché (gives a sort of Lord of the Rings feeling) but it feels grand and very awesome. You can travel to a lot more locations then in it's sequel, so a lot more variety. In my opinion is the sequel a lot easier and a lot more linear. The game isn't as interesting to replay. In Origins you're background is decided by what class, race and origin you chose, so there are a lot of possibilities. In Dragon Age II you are a human and you can't choose you origin. The only thing that has a small influence is your class, but is doesn't have a huge impact as it had in Origins.
What both games have is an excellent possibility to role play. Every choice you make can influence the whole game (in a small or in a big scale) and your relations with characters. It's really cool how you can start a romance with one (or more) of your companions!
If there will make another Dragon Age, they should really combine the two games. An awesome questline with impressive and different locations. A cool combat system and very interesting characters. I hope if there comes 3th Dragon Age, it will be more friendly for the replay ability.
Now I have finished this game, I'm going back to playing a MMO for a while, combined with Age of Empires II (damn the nostalgia).
As MMO I picked WoW. I don't think RIFT has enough interesting endgame content to keep me (as casual player) interested. Aion is very difficult and gear dependent for the end game content and well WoW is very casual and I know a lot of people there....