Which should I pick up: Lee or Maokai?

So as you all know, Maokai is getting his rework. Seeing his rework has me very intrigued. I'm wondering whether I should pick up him or Lee Sin first. Lee's combo gameplay looks pretty cool (ward hopping could be removed, in my opinion tho), while Maokai looks to fit his wrathful force of nature theme more now.

So which should I pick up first?