I think we're overrating Latios a little too much...
		
		
	 
 Since Mekkah demanded backup, I decided to explain myself further. At first glance, we see Latios' amazing stats and movepool. And Jumpman's calculations. However, theory doesn't explain everything. Tests need to be done to ensure that one point is correct. However, with all of these calculations and overratedness, we have to compare Latios with some other things. Perhaps these things may be somewhat comparable to Latios, not in their movepool or stats, but their power and hype. This post may sound idiotic to some, but it may be good enough to get my point accross. 
 
What do we see everyday in the OU metagame? Tyranitar, Garchomp, TTar, Chomp and over and over. Stall died in OU, and these pokemon are technically uncounterable. CBChomp 2/0HKOs everything in the game, and TTar sets up the storm and help it sweep. Garchomp packs ridiculously powerful moves and can actually go mixed. This is something Latios is practically incapable of..at least without dying, since it needs to boost to beat up Blissey. Well whatever it is, I'm just going to list the counters to some of the pokemon that already exist in OU. 
 
Garchomp: Prediction. Nothing walls CBChomp except for maybe Hippowdon, who gets 2HKOed by Outrage is just one Spikes is on the opponent's field. Hippowdon also risks itself switching into Chain or SD Chomp. Subchomp gets walled by nothing except for random HP Ice Bronzongs and Skarmory. Skarmory and Zong also risks getting blasted by Chain Chomp...or any Garchomps with fire Blast. Cresselia counters Chain Chomp fairly easily, but Tyranitar destroys its existence with Pursuit. People generally never carry a Garchomp without a TTar. That means there is no reliable way of killing this thing without either losing a lot of health or revenge killing. Yet even with all of these factors, it remains in OU
 
Tyranitar: Technically, nothing . Hippowdon can get Ice Beamed, and so does Gliscor. Pert and Rhy doesn't like CBCrunch, EQ (for Rhy) and the Specs set. What's more annoying about Tar is that it can Pursuit stuff down. A lot of stuff hates staying in against TTar (Cress, mainly), and a decent amount of Chomp stoppers lose to it (Cress, Starmie, Slowbro). Tar is even more unpredictable than Chomp, but is less dangerous when its set is figured ou than Chomp. TTar can also switch in on a lot of suff with its massive defenses, despite the numerous weaknesses. The Fighting types are the closest things to TTar counter, and they don't like CB Quake that much...or Specs Thunderbolt.
 
Now to Latios: Latios also packs a nice movepool, but it's not as dangerous as people think. DDset is walled by Skarmory, Forry (Gryo Ball), Zong (who's decent SD can also let it take Draco Meteor). Meta takes Latios with ease, even if it means nearly dying from a DD Earthquake (but still, it survived!). Blissey can scout for its set and land a Thunder Wave, hopefully crippling it. Specs set gets loled by Bliss and some Registeels and Metagrosses with nice prediction (Registeel can take one Specs HP Fire and quickly flee to something like Aerodactyl, or even more dangerous, Tyranitar. Tyranitar's massive Special Defense allow it to survive 3 Specs Draco Meteor with the right EVs (SA drops counted). Tyranitar is the thing that spells doom to Latios f you predict incorrectly with the Eon. With Max HP, it survives a DD LO EQ with ease, and Crunches it back to death. It can even Pursuit those thinking they can escape. As far as revenge killing goes, Heracross and Weavile are viable choices. Latios can be revenge killed, unlike TTar or Chomp (Tar can survive a CBed Quake from Dugtrio, and Chomp can only be revenge killed when it's stuck on Outrage). Well, whatever it is, I find Latios to have slightly more definite counters than the previous two, mainly because they can be Pursuited, which means latios needs to be extra careful or else it dies.
 
Also, Maniaclyrasist did some tests with Latios and he tells me it is not as scary as people think.