Paladin: OK, this is not a holy warrior. This is warrior or death knight gear. The spikes on the helm, which have the look of dragon teeth, and claw-like feel on the shoulders gives the impression of bloodlust and trophies, not a character who has a divine purpose. Even the horde color scheme looks more like a fallen paladin turned death knight such as Arthas. While the overall look is a nice combination, it just doesn't fit the class.
Priest: As much as the paladin set is not divine, the priest set is perhaps the best in mirroring the class itself as a divine or holy presence. Even if the priest specs shadow, seeing this armor in dark purple would be just as awe-inspiring. The first thing to hit you is obviously the wing-like shoulders, but the holy aura feel of the helm is also spectacular. There is nothing outstanding about the rest of the gear, but that is actually a good thing, since nothing detracts from the standout look of the other two pieces. Perhaps the best set in the PvP batch.
Rogue: This gear is reminiscent of a samurai, particularly in the helm and shoulders. There is very little about this set that screams stealthy ninja, but more honorable warrior. While I agree that rogues can have a warrior mentality at times, honorable is not a work for this backstabbing, attack-from-behind class. The dark accents fit with the class, but again, the armor's look does not. And is that a fur lining around the neck and shoulders? At least is will be comfortable.
Shaman: I love the wolf helm of this set, but the shoulders are odd, the belt looks like a scallop and the chest has a bare midriff. Modeled by an orc female, the chest is basically a bra and nothing more. It will be interesting to see if the male version also has that much skin exposed. The colors have mostly earthy elemental tones, but overall an odd compilation. With the exception of the helm, a rather weak representation of a formidable spellcasting class.
Warlock: The evil dripping from this set is palpable. Spectacular shoulders, robes and pants, with a face mask to die for. A closer look at the helm shows what appears to be a witch's or pilgrim's hat with a crystal or necrotic growth exploding out of the top. Brilliant! This is one of only two classes that have no skin exposed (the warrior is the other). The ensemble as a whole is exceptional, and ranks with the priest as the best of the PvP classes.
Warrior: As atrocious as the PvE armor is, the PvP armor gives the impression of a battle-hardened veteran, highlighted by the broken horn on the helm. The absence of a horn on the right shoulder is a bit puzzling, but it appears the design was intended to have a different feel on the right side as evidenced by what appears to be fur lining. It is refreshing to see this melee class have no exposed skin, but this also is one of the few classes that has a glow. It isn't necessarily out of place, especially in light of the excessive glows used on the PvE gear, but it is something that stands out. A great set for a strong and imposing class.
Even though I may have been critical of several sets, I think this PvP gear is much better than its PvE counterpart by far. It is a tad odd that this gear is as lacking in glow and the PvE gear was in overusing it. But again, a minor style point.
But as we mentioned with the PvE gear, anyone itching for a good set bonus will forgo the chance at a dignified look. And if you do hate the helm, you can always hide it.