@Riot: Can you clarify how you justify Annie having the most powerful AOE magic burst?
An Annie with a lot of AP can delete multiple targets at once with her Tibbers/W combo and both of those skills have no travel time. You might say "short range", but that's a bullshit excuse nowadays. Annie can easily overcome that difficulty with Flash or other mobility tricks, or get boosted by an ally with a Talisman of Ascension or Righteous Glory.
Add on that she's a tanky mage thanks to Molten Shield, and there's little wonder why she's presently so high-tier in LCS games. The question I'd like to ask is why her burst and stun power are allowed to be so nasty with so little ability to react to her Flash-initiates.