Got https://www.wowhead.com/item=2951/ring-of-the-underwood?bonus=3904 and https://www.wowhead.com/item=2564/elven-spirit-claws&bonus=3904 BiS versions on Silvermoon and Draenor EU
WW monk is tier 2, maybe even tier 1. Insane healing if you decide to use Chi Wave in a 1v1. The mobility is the best, just hike if you can't manage the fight. Insane dmg.
I've tried various characters at both 70 and 79, my conclusion is, that lvl 70s are the best in instances and duels. But 79s are overall better in bgs. Because of 79s high ilvl and lack of sockets.