Is spell dmg worth at high levels?

[x3n0n]

Shield proficiency, better AC (medium armor / unarmored defense), two Rages per day in key fights (only used it once in actually but only because I was saving it for tough fights), Con save proficiency, greatsword proficiency, and eventual Reckless Attack and Bear Totem Resistance (planned for levels 13-14).

Ok, that's what I was missing.

Pros vs Fighter: 2 Rages, plans to progress to Barb levels 2 & 3, (Edit: and unarmored defense for style points, stealth, and no metal armor for Shocking Grasp/Heat Metal)
Cons vs Fighter: no Fighting Style, no Second Wind, no opportunity to progress to Action Surge and subclass