For all the awe inspiring scenery and immersion, one thing that I loved about Skyrim was the depth to its professions. It may just be that I've not played too many RPGs or MMOs, but Skyrim surely has one of the best crafting models seen yet.
Each Profession is unique and as you progress higher up the talent tree, provides unique benefits and passive bonuses.
For example, Blacksmiths can improve their own armour twice as much. So someone that didn't level Blacksmithing didn't have access to that tool. Also you could craft your very own Daedric Armour. Sure you can find it all over Skyrim the higher your level, but to be able to craft your own armour is pretty cool. And it isn't an easy thing as well. There is a lot of farming required so again there are rewards for choosing a particular profession.
Then lets take Enchanting. I loved the whole soul shard thing going on in the game. Not only can you learn new recipes by dis-enchanting current weapon with enchantments, but then you have to go out and trap a soul to enchant the next piece of gear. Then as you progress up the tree, your enchantments get passive bonuses. You can even add two enchantments on an item after being fully trained.
Alchemy too is very well done. But it stands well if you have Herbalism.
But you get what I am trying to say. Each profession has so much depth that it isn't just another stat stick. There is so much more you can do with them specifically.
Professions currently in WoW have lost all meaning and purpose. Sure its a good gold making tool, but it doesn't really engage you.
What the game could do with is a complete overhaul to professions in the game. Make it more rewarding rather than simply choosing which one is the most profitable. Not too long back JC and Inscription were considered the most profitable with Enchanting as well. However, since its so easy for everyone to level new professions, competition is high. People ain't looking to compete more so than simply undercut each other. JC was considered one of the most expensive professions to level only an expansion back. Now its probably the easiest and less time consuming.