Regenerator is a nice ability. Saying Zapdos is a piece of shit in the metagame is not only untrue but it does not make the Tornadus-T argument any stronger. Furthermore, if you take a hit from Tornadus-T, it already took 25% from SR (SR only gives it 8% back per switch in), 20% form Life Orb damage on attack + U-turn. If you smacked it with Just one attack, it is already in the red range as, nearly 40% of its health is gone right there.
This is basically the reason why tornadus-t isnt uber. It is not hard to predict and land a hit on it. Even with regenerator it will need to come in again to probably rocks and face another hit. It cant keep taking hits. The biggest assumption in this thread is that tornadus can waltz right in and start spamming hurricane with no drawback.. That is simply not true. At least for me it has to work to get in and work to survive. Also the bird hates priority as it removes its u-turn capabilities. If you are a good battler and dont play pokemon like rock paper scissors with pictures then you can beat this threat. There are alot more pokemon that I am scared of in this metagame. One of them is victini in the sun and choice band terrakion. Not to say they are uber but they both can beat torn-t one on one.