I find the group flash points and heroic quests a lot more fun than dungeons in WoW. Since they actually require a brain to do. The story is pretty awesome from what i have seen. Pvp could be pretty fun but it does have issues.
I really don't know what the end game will be like, which is why I am keeping my sub to WoW.
The same could have been said about Vanilla WoW though. World pvp was horribly imbalanced, there were no BGs, and the only good pve was at level 60. Questing was bore. The game didn't get interesting until BC where blizzard actually created a story arc.
What I am saying is give it time. Bioware is new to mmos just as blizzard was new to mmos, WoW had an awesome endgame in BC and I'm sure bioware will learn as they go.