Radiant Wukong VS Championship Riven 2016

So I got these two skin shards and I like them both, but I only have enough OE for one of them.

I like wukong as a champion more but I already have a skin I like for him so I might never use this skin. On the other hand I don't really use riven ever so it might just be a waste. Also It's worth noting that I DO really like both these skins so there's no problem there.

Since I can't decide I'm gonna let you guys pick for me!