I don't think it matters how he defines it. What's best to you?How are you defning "Best"?
The different classes do different things well, and DPS is arguable in many cases and often only goes in certain ways because people do not always conceptually understand how some of the classes even work.
Barbarians fragile? My Goliath Rageblood is tougher than most defenders, and certainly tougher than any striker!
He does have low defenses, but tons of HP, surges, temp HP and damage resistance.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.