Well, I have to say that my first character was a Pale Elf Shieldbearer. My first run was disastrous, I tried putting all of my perk points into raising defenses -for all party members- thinking I could turtle my way through the game. Every fight was a slog. Even after raising the level cap with the White Marches I couldn't beat the dragons, I never actually finished that run. I ended up taking a contract out of state and when I returned I bought a new computer, never bothering with the old files.
So second run was also a Paladin, also a Pale Elf, only difference was opting for Kind Wayfarer. Stat wise, phys stats were all ten, Resolve was eighteen, Perception and Intelligence were somewhere between 12 and 14 with Perception being the higher. Knowing a little about what I was in for, I built him entirely around passive skills and abilities because I loathe micromanaging. He was brutally effective, damn near indestructible but only with team support. Even combat with the dragons never lasted longer than thirty seconds. The only engagement that I remember having to tackle twice was the Guardian behind the sealed door in the Paths Below.
I won my Frozen Triple Crown Solo with a priest. I could never make Durance's AI effective, or even helpful, but for some reason soloing as a Eothasian Priest was just. . .Ridiculously easy. Even easier than the Triple Crown Solo I took with a wizard (I had to look up the hidden achievements and do the whole thing twice, which annoyed the **** out of me).
Some classes are better than others, but none are really awful. It is just a matter of sorting out how to use them I tend to think. Eder, for instance, built around two handed War Hammers and equipped with Abydon's Hammer absolutely wrecks, especially once you slap Savage on him and that passive that does more damage as the enemy loses health. He pretty much took out the Sky Dragon by himself.