Haha, ok so let me understand this, you are comparing a pve geared Paladin, taking on other pve geared people just after paladins got completely overhauled and buffed in the 3.0 Patch To what classes are currently sitting at in the 3.2 patch? In Addition, in 90% of those fights, he is killing people with more than one person hitting the target (3 v 1 does not show skill or awesomeness).
You will not find a ret paladin after the 3.2 patch getting crits anywhere near that against a pvp geared opponent.
You are also only speaking about classes in the pvp sense. In PVE shaman dps compares nicely with paladin dps.
Based on the current simcraft stats for T8, shaman's are doing to bad on the DPS :
http://code.google.com/p/simulationcraft/wiki/SampleOutputT8