I really don't see any of these guys as a special snowflake or super bad a--. The characters fit the story they are in. Hawk was just there. Everything bad seem to happen to Hawk. That was his/her story. You knew it was coming because Varric was being interrogated.
The Warden is unique in that he/she gets screwed in the beginning of the game. The Taint is a bag way to go. The Warden is the person against all odds "makes it". It is the story of ultimate sacrifice. Even if you win and live you have the Taint which will drive you crazy before you become a ghoul.
The Inquisitor accidentally gets the mark which closes Rift. Special snowflake??? For the most part I thought the Inquisitor just uses the mark to close Rifts and send Cory back to the fade. That person was a skilled mage/warrior/rogue before the mark. In the end that person loses their arm.
What character did I like the most, Inquisitor first and Warden second. Both these characters were able to make major decisions on their own. Hawk was my least favorite because things just happened to them. They had no control of what was happening.