Plenty of pokémon can put out Garchomp-level damage
This is completely false. There is no other pokemon that can put out Garchomp level damage.
Here is a list of non-uber pokemon with 394 attack or higher:
Rampardos
Slaking
Regigigas
Rhyperior
Salamence
Tyranitar
Metagross
Dragonite
Machamp
Kingler
Flareon
Scizor
Ursaring
Breloom
Absol
Garchomp
Mamoswine
And here is a list of pokemon with 333 speed or higher:
Deoxys-E
Ninjask
Electrode
Jolteon
Crobat
Aerodactyl
Swellow
Weavile
Dugtrio
Alakazam
Sceptile
Persian
Starmie
Raikou
Floatzel
Ambipom
Purugly
Tauros
Gengar
Jumpluff
Espeon
Froslass
Infernape
Rapidash
Scyther
Manectric
Lopunny
Mismagius
Garchomp
OU pokemon are bolded.
Members with Swords Dance are underlined.
Huh, I see a trend. Look at how few of the "high attack" Pokemon get swords dance. Now look at how none of them are even remotely speedy, Kingler and Absol being the second fastest. Note how none of them are even close to Garchomp's speed, or have good movepools (absol uses rock smash!) or high power moves. Absol gets Sucker Punch, Kingler gets Crabhammer.
Garchomp is the only pokemon with 394 attack, a 180 base power move and the ability to double it's power in one turn. No pokemon can boast this ability. The closest is Porygon-Z, who has mediocre defenses, low speed and poor defensive typing.
In fact, Jolly Garchomp's Swords Dance Outrage does a whole 9% more than Timid Porygon-Zs Nasty Plot Adaptability Tri Attack, the strongest special hit in the game. No physical wall approaches Blissey's level of toughness either, so Garchomp literally 2HKOs everything in the entire game, no questions asked.
Couple that with his ridiculous STAB combination and 333 speed, and you've got a monster on your hands. Even without Sand Veil, Garchomp is no doubt the best sweeper in the game. Not only is it "uncounterable" but with Yache Berry it can beat most pokemon one on one.
I am getting tired of newer inexperienced members just spouting off garbage such as "ICE > CHOMP", "chomp is same as salamence and dragonite" and "weavile counters it"
If you don't know what you are talking about, don't say anything. Obviously you haven't gotten high enough in the ladder to see skilled players using Garchomp the way it's meant to be used. Either that, or you've been playing Wifi where every team has a PBR Electivire, Magmortar, and their starter on the team. That's not true competitive battling.