It just feels that you are complaining endlessly about things that have nothing to do with the class.
You are comparing a Ret Paladin's decent things to other classes outstanding things.
Shadowburn is an execute that is better than Paladin's yes. But as others have said it costs A BE instead of giving them one which is a strength. You countered that point with "it one shot's people in blues" or something similar, but you shouldn't be talking about things in PvP when it's in Blues. Full geared is when things can be declared OP
You are forgetting in retrospect that things like Warlocks, Mages, Rogues etc are all meant to do big damage. A Ret is a damage dealer, yes but not a primary damage dealer. The purpose of a retribution paladin in PvP is to be a bursty support. With cooldowns up rets are top 5 in burst ATM, however float around the middle to bottom without. The thing that makes them one of the best is their UTILITY! Hand of Protection, Hand of Sacrifice, (in non-rated play LoH), Divine Shield, a ranged stun, Repentance if you spec into it, BLINDING LIGHT! And the most important thing: BIG HEALS! I don't know if you played in Cata but triple DPS (scumbags but it's an example!) was only successful because the Ret still did extremely high damage, but brought the needed heals if the game went a bit longer than expected.. or Scooby Doo Cleave, it helped the priest out significantly when he was being trained to have that support!
If you are playing ret for high damage all the time it isn't the class for you man. A Ret is meant to be bursty with support
And I am a multi-glad, so not some random spreading bullshit everywhere.