Something I miss from TBC and I think Wotlk was the same was being able to chose talents from multiple different trees.
I was messing around on Youtube and for some reason Restokins came up. I remember druids with this spec would top heals and damage.
Then we have the SL SL locks. Those were unkillable.
Once I tried a fury/arms mix where I got dual wield in fury and mortal strike in arms. It was actually a lot of fun.