Whenever I see people complain how boring the leveling in WoW is, I always bring up the point to simply solo or duo Dungeons instead of LFD them. They are actually challenging and decent XP (~350 per mob with Heirlooms at level 15). Just did ragefire chasm with my level 16 Elemental Shammy and it was as fun as I remembered them to be. The bosses all have meaningful mechanics too. For example Slagmaw spits fire on the ground, so right when he finishes the cast you move left/right and not get hit. Simple but rewarding and did not take damage. Dark Shaman Koranthal needs to be interrupted or you get hit with 25-30% HP. He also has a phase where you need to run out of some shadow voids, it actually was FUN to play the dungeon how it was supposed to be. While specific mobs have priority to kill/burst, patrols need to be killed, CC is important as well as interrupts. You may even take different talents depending on what boss/dungeon you fight. Now, granted, Shaman has an easier time than others simply because you can heal yourself. But that's where Blizzard could do a better job. Let's be honest, the dungeons at this point are not meant for 5 players, I would change them all to be 2-3player dungeons (while keeping them as is!) without role restrictions. Kinda like Scenarios. If you hate leveling because it is faceroll I encourage you to solo (or duo, depending on class) them. It is, to some degree, more fun than endgame dungeons.
Thoughts?