We're also overlooking some of Dalinar's struggles outside of the book.
What drove him to go to the nightwatcher and forget his wife?
Was that the right choice?
How would Gavilar have cared for his son?
How do you make a king a better man without DOING it all for him?
I believe he is on a level field with Kaladan. Think about how much he has had to stand up to, having his feet cut out of under him because he's trying to work with people, not dominate them. He is ridiculed for his visions, something no one has really turned around to him to say, "You're right, Dalinar, we were wrong about you." There are layers of responsibility on him that don't rest on Kaladan, or at least, didn't, until they both became Knights Radiant. Keep in mind that Dalinar also listened to Kaladan and brought out the truth from Amaram in public, discrediting him.
So, I identify with Kaladan better, because he's younger and struggles with the small things. But Dalinar struggles with boulders while Kaladan is juggling his guilt and depression. Dalinar's journey isn't as heroic within the books, but as a model of a hero, he's neck and neck with Kaladan, in my opinion.