2.Relatively, quests are all not too hard.
3.Questing is debatable to be faster for leveling and less risky.
5.Any class! Have fun with your paladin
6.Quite a few people are playing, there is a lot.
7.So far drops, but you need to work on them.
8.There is PK, its a toggle that you can activate at lvl 11.
9.So far not many people have reached the cap.
Hope this helps!