Well then Hoopa kills. 🙂
The Legendary Beasts come off a bit better, IMO. Raikou embodies the speed of lightning and so is probably faster than Zapdos but equal otherwise. Entei's roars cause volcanic eruptions somewhere in the world, which is beyond anything Moltres has shown, IIRC. Its fire seems a bit more devastating, too. Not sure how Suicune compares to Articuno.
The Regi's in the manga were absorbing the energy released from Kyogre & Groudon's duel, which is pretty impressive. Also, they're vastly more durable than the Birds (although a lot slower), which makes them so much harder to beat. And they don't need the speed since they all have Lock-On.
Fair enough. That'd leave Zapdos, (who's wing flaps can cause thunderstorms,) Moltres, (who's presence can turn winter into early spring,) and Articuno, (Who's an implied equal to the other birds,) to combat star wars.
Other interesting Pokemon to consider are Charizard, Dragonite, Lucario, Mewtwo, etc.
Oh shit, for some stupid reason thought the forces of nature were Groudon/Kyogre/Rayquaza. Silly me. Aren't Landorus and co. hella fast and able to create hurricanes and tornadoes and earthquakes and shit pretty casually? 🙂
That's true, Oblivion Wing is the ****ing shit. Though if Yveltal can win, Xerneas can too. Peak Zygarde is stated to be superior to Yveltal/Xerneas IIRC.
Well Mega Mewtwo Y was pretty insanely fast and did this, one of which could do this. Also can't forget about this/this.