Picks and bans after watching 10-15 games of challenger stream (december 2013)

Bans:
Kayle (always first banned)
Cassiopeia (when you're not first pick otherwise you should pick her) or Annie (when you don't have to ban Cassiopeia and you'll pick her)
Pantheon (if you won't let him to the enemy team but if you leave him open you might be able to pick him though)
Riven (can snowball hard and be annoying top)
Shyvana (farms way too fast and become tanky with a lot of damage, also great presence in jungle because she's manaless and very mobile)
Syndra or one of the names below (strong overall champions)

Firstpick: Cassiopeia or Pantheon

Bot best picks: Cassiopeia (best pick), Annie, Syndra, Karma and Lyssandra
-> ignite and flash
Top best picks: Pantheon (best pick), Olaf, Riven and Shyvana
-> ignite and flash/ghost
Jungle best picks: Shyvana (best pick), Xin Zhao, Vi, Lee Sin, Kayle and Gragas
-> smite and exhaust