The point is, the guildguards in the city (At least the paladin, I can't say about the others) are totally out of proportion to the guildguards anywhere else in the game, and far far tougher than (IMHO) they have any right to be, just being guildguards. Don't you think it's rediculous that a mere guildguard, would be far far harder to fight than a cabal guardian?