I was here at the beginning and quit the game within a few weeks because the PvP - while good - wasn't good enough to justify the Vet. Grind. A very common complaint through Beta and launch was the lack of a Combat Log. ZOS said that they didn't want people to play the UI (as if any PvPer worth his salt ever played the UI). I remember saying then there would be a lot less complaining about PvP if players actually knew what killed them. All we knew was we died instantly, and without a Combat Log there was no way to figure out why.
I've come back, started on the Vet. grind. Today I took a break from that to PvP at Vet. rank 4. I see they've added the ability to see the last five things that hit you... and I am sorry but that is just not enough. I primarily play PvP focused games and I have never seen as much whining and calls for nerfs as what exists on these forums... and frankly I think it is all justified. Now all we know is we got hit by three wrecking blows or a 10k crystal shard and without more information it is justified to think that all the classes are over-powered.
There will always be whining, but there would be a lot less of it if it was easier to see the math behind it. We need a combat log with time stamps and a break down of the total damage for each hit, with a sub-total of what was mitigated and what ignored mitigation. It also needs to keep track of what debuffs are on you. All of these things have been industry standard for years and won't be hard to implement.
A 10k crystal shard seems a lot less over-powered if you can see it was actually a critical hit and that you only mitigated 5% of the damage and need to take a look at your gear. Time stamps are especially critical... if you have five wrecking blows it is justified to pull out the torches but if you see that they were over a period of fifteen seconds obviously you are doing something wrong on your end.
I am tempted to rage about sorcerers... I have little difficulty killing Dragon Knights and Nightblades but when a Sorcerer has a shield up it seems I literally do zero damage. I am not going to complain though because I have no idea how the shields work, and it is entirely possible that they mitigate damage as well as act as a second healthbar and then that is just a case of me not being strong enough yet or needing to spec more into penetration. A combat log would give me the answers I need and there will be a lot less complaining when people know what is going on (and any complaints about real imbalance will be validated because know all of the other variables to take into consideration).
I know Zenimax has been emphatic in the past about wanting to keep the game immersive... Well, you also promised lots of new content and now with BTP and Pets in the Crown Store it might be time to swallow your pride and make this MMO playable. There is very strong competition (and a few wild cards) coming up in the next couple years in the world PVP market... it is time to make some changes.
As an addendum, I would like to pre-emptively respond to the PVE'rs who say dungeons will be ruined and casuals won't find groups... Well if your guild won't play with you find another one or get gudd.