Diablo 3 is fundamentally broken

[Ruvanal]

Also, it may just be me, but it seems like the affixes aren't as random as you might think. When I play a ranged char, I see vortex, teleporter and fast alot more. When I play Barb, I see Molten, plagued, and Arcane Sentry more. Just had a reaaaallly nasty combo while playing my Barb - Spiderlings with Illusionist, Arcane Sentry, Jailer, and Waller. Pretty much impossible to beat. Rage quitted.

From my experience the mob traits seem pretty random once you are far enough into the game, just like they were in D2. In D2 the trait for the boss and champion packs had a minimum level before they could spawn on those groups and there was also weighting factor for how probably each trait was to each other. Too bad that they did not bother to carry over the the trait exclusion set up that D2 had that prevented some traits from spawn together on the same boss/champ group.

However when I play my barb, I am lot more concerned when I see traits like molten, plagued and arcane than my DH would be since those traits are rarely of any real concern to my DH. And the other way around for the other traits you listed. That level of concern over the traits can make strong bias for remembering what you saw unless you really keep your mind focused on looking at their appearance frequency independent of what class you are playing.