I think most people who PvP alot will agree with me on a topic...weapon sets. By this, I mean the weapon set bubbles on which you can put different combinations of weapons and switch them at ease instead of opening your bags.
As for many people who PvP, the amount of weapon set bubbles you have is not nearly enough. In the current game, there is only 4. Most people who are serious about PvP don't hold back when gearing for effectiveness.
I am a hammer warrior and the amount of weapon set combos I have is difficult to use apart from the 4 bubbles. I have a:
Ebon Hammer Of Fortitude
Vampiric Hammer of Fortitude
Sundering Hammer of Fortitude
Furious Spear / -5/20% Shield
As you can see, that's 4 already which takes all the bubbles. For me to be effective, I assembled more shields for survival. In addition, I have:
Shield (20% Crippling reduction/+30)
Shield (20% Blindness reduction/+30)
Shield (10 Armor vs Fire/+30)
Shield (10 Armor vs Lightning/+30)
Shield (10 Armor vs Slashing/+30)
Shield (10 Armor vs Blunt/+30)
As you can see, that's 6 shields I have to be able to switch very quickly to counter against spikes.
As of the current times, the only way I get to switch shields is by opening my bags and manually doing so. By doing this, it goes against my survival since the spike may be over before I switch shields.
What I suggest is that ArenaNet adds at least another 4 weapon set slots so it's easier to survive in PvP where armor against damage works very well.
W
