1. Warden
2. Hawke
3. Inquisitor
Honestly, the main reason the Warden is ahead of Hawke is due to mods. The mods I downloaded enriched Origins and made it more fun to replay. There were far less mods for DA2, but the game is still fun to replay. With DA:I, I'm still on my second playthrough and it feels like I'm trudging through mud...the level grinding gets old and it became apparent, the second time through, that the game has far less substance than the other two.
There were things I hated about DA2 (like the forced and pointless killing of Hawke's mother), but Hawke's companions were awesome and you felt like you got to know them very well. It was that way with DA:O, too. We got to develop our PCs and, in doing so, it shaped the relationships with your companions. You became friends with them, or in some cases, wary allies. There was depth to the characters and the PC. With DA:I, I don't feel like I know any of these people, the Inquisitor included. She's kinda bland, doesn't get to be much of a smartass, and her companions are a bit standoffish, even near the end when you're supposedly "close" to some of them. It's sad that the one I feel my Inquisitors got to know the best is Cullen, and he can't even join your party. I loved Varric in DA2 (he was my Hawke's buddy and rock) but in this one, he really doesn't say much and you never get the feeling he's the Inquisitor's friend. None of them are, really. It's like the game keeps telling you that you're friends, but you don't feel it.
It's funny. After my first time through DA2, I killed Anders almost every time. I loved the guy but he had to go and it ended up feeling like you were doing him a favor to kill him because he was so lost. There was little left of the Anders you met in Awakening, after all. But even when he blew up the chantry, my Hawke cared for him (even as she stuck a blade through him). But in DA:I, I loathe Blackwall. The dog story made me ill, and he never really did anything to change my opinion of him. Again, it was like they were pushing you to think of Blackwall as this suddenly heroic dude, but I just don't feel it. The guy is a huge douchenozzle. I wish we could trade his sorry ass for a Mabari.