I was looking for a good, solid post-3.1 armor penetration calculator that also takes account into talents/debuffs, and this is the only accurate armor penetration calculator I came across.  With S7 stats about wow gold, even a pure PVP geared rogue can put together some decent armor penetration ratings and this is one of the few stats that do not suffer from diminishing returns, in fact it only gets better as you stack more of it wow gold.

That is 258 ratings with zero raid gear. Mix in some raid pieces, and armor penetration gems, you can hit 500+ ratings even with pure PVP gear. Add expose armor and mace spec on top of it, and you are looking at +36% physical damage increase against 2 hand warriors, +40% vs shield paladins to get cheap wow gold.

Unfortunately, the benefit goes down substantially as you are taking on softer targets. Against a rogue with 6000 armor, we are looking at a mere 22% damage increase. Against warlock with 4000 armor, the benefit drops to 15% about wow gold.

Having said that, armor penetration is still by far the best PVE stat for PVP, miles and miles ahead of haste/expertise, and a big reason why PVE geared rogues still have a big advantage against pure PVP equivalents. Why can not Blizzard release a separate set of rogue arena gear with armor penetration ratings instead of crits? Casters sure complain a lot about melee itemization about wow gold, but they get to choose between crit, haste and spell damage on every honor piece! Why can not we at the very least get to choose between armor.

 penetrations, crit and hit on ours? The biggest question is of course; will Blizzard keep the tournament realm running after Blizzcon? Without the tournament realm it would be much more difficult to arrange this. Spoh is also undecided on whether players are allowed to re-spec/re-gem/re-gear for specific match-ups