I have some suggestions to improve pvp and bring balance to many classes overall.
Warrior
- Remove Defensive stance from non-protection warriors
Rogue
- Remove CD and cost from Burst of Speed, and make it give you immunity to roots and slows while active.
- Give rogues a fear
Death Knight
- Remove Blood Presence from non-Blood DK's
- Make Frost DW-only
- Give blood a dps option like prot warriors have
Shaman
- Give elemental a water spell
Mage
- Remove double ice block
Druid
- Remove Bear form from non-guardian druids
- Make druids immune to silence while in any forms