I'm not too sure I agree with what you're saying, doublenikesocks. Aside from your comment on how the metagame sucks, which already shows your bias, what you're saying about needing just one counter / check to Tornadus is not true. Well played Tornadus is extremely hard to handle, mainly because of Regenerator and U-Turn. Really, you have to be either steel type, Rotom-W, or a blob to be able to wall Tornadus, because it's so damn powerful and fast. This makes the idea of countering Tornadus with just one pokemon highly unlikely- as there's nothing stopping your opponent from switching to a trapper and knocking ou / crippling your only answer. Tornadus's counters are also unlike Keldeo's in that they rely on typing AND bulk to take hits- which often sacrifices firepower, forcing teams to use slow walls in order to handle Torn, and this really throws off teams.
You can't compare Chomp and Tornadus either, as Chomp's counters were all flyers, making Magnezone the only way to trap it's counters, but that sometimes opened up more weaknesses. With Tornadus, you can just slap in Duggy or Gothi and your team will actually benefit more- as trappers help win weather wars. Also, Chomp isn't fast, it doesn't have easy recovery, nor does it have pivotal moves. You can't compare them.