chimpact
fire nation
Hydreigon is not as common anymore partially because Breloom got technician in BW2. It was a lot more prominent in BW1 because it wasn't pursuit weak and could handle TTar somewhat. Latios is getting a lot more usage in BW2 compared to it because it can run the Scarf set to clean games, resists breloom's mach punch, and is a solid check to rain threats.
The more and more I see Garchomp, the more I think it's capable of dropping down to OU. The BW2 metagame is so much more offensive and with a variety of pokemon that naturally outspeed garchomp, and all the priority users, it's really not the threat that it used to be. The Scarf set is the most common and locking yourself into EQ or a weak fire blast/dclaw is just going to allow your opponent to set up on you.
I really don't see the comparison. The 4 points of speed is so crucial when considering what falls in between them: Genesect, Various base 100s, and Landorus-I. Being able to outspeed all of those pokemon naturally is a huge plus. And the physical / special niches of the respected pokemon cannot just be simply ignored. You won't see Hydreigon's go for crunches or garchomp (for the most part) go for drago meteors. They have different switch-ins. You won't see a skarmory coming in on Hydreigon or a Blissey coming in on Garchomp. Hydreigon is a threat, but he is nowhere near the level of Garchomp.Hydreigon is only 4 points below in Speed and is basically Garchomp as a special attacker instead of primarily physical. He is an outstanding Scarfer, and with his large move pool consisting of powerful SpA moves like Fire Blast, Focus Blast, Dark Pulse, and Draco Meteor, he can revenge kill many top threats in OU.
Unlike Chomp, Hydreigon has the ability to revenge kill Mamoswine with Fire Blast unless it's banded, or if he happens to lock him into Stone Edge or Earthquake. That's another thing, Levitate. He is immune to all Ground types moves, and Spikes/Toxic Spikes. This allow him to switch into anything that tries to possibly EdgeQuake an entire team.
My point is although just ever so slightly slower, Hydreigon can be just as dangerous as Garchomp that lacks SV, and although Chomp carries a little more bulk, Hydreigon lacks a x4 weakness to Ice, an immunity to Psychic, Ground, and Spikes, more diverse move pool, and revenge kill a wider amount of threats.
Yes Garchomp has its advantages, but Hydreigon is very dangerous, which in my opinion makes it seem like Garchomp would fit just fine in OU, as the underrated Hydreigon can be just as dangerous to a team as Garchomp can.
The more and more I see Garchomp, the more I think it's capable of dropping down to OU. The BW2 metagame is so much more offensive and with a variety of pokemon that naturally outspeed garchomp, and all the priority users, it's really not the threat that it used to be. The Scarf set is the most common and locking yourself into EQ or a weak fire blast/dclaw is just going to allow your opponent to set up on you.