Apparently Wintergrasp is too popular, so they’re making the daily quests into weekly quests in an effort to reduce the lag.
I’ve taken to playing Wintergrasp primarily for the fun of it. The advantages to me are 1) I know when it will start, i.e. no waiting for a group or queue, just the timer, 2) I know how long it will last (20 minutes max) and 3) it’s epic fun with mass numbers of people (well, mass numbers of alliance on our server).
The mass numbers of people is key. As a mage, I’m dead if anyone singles me out. The massive body count hides me well and I can AoE to my heart’s content. In Battlegrounds of 10 or so, I’m just a quick honor point. In Wintergrasp I’m a flaming death bomb. 
I don’t even have to wait for the portal for it to start, I can just fly into the zone in advance, regardless of who controls it. Wintergrasp is all about freedom from constraints.
