Tips for my Fantasy Draft!

In my league, I am in need of a jungler and I'm not too sure who to pick up from the ones available right now.

Airwaks, Diamond, Jankos, Xmithie or Svenskeren?

Also, from the players currently on my rosters, I am not too sure who would be my best flex:

Steelback from FNC who played fantastic or PowerOfEvil who looks to have a promising future?