I dind't say that.Best typing,amazing speed aside, Sand Veil is the thing that makes Garchomp the best Dragon as of right now.He is better than Latios,Latias,Onokusu,Flygon,Sazandora,Salamence,Dragonite,Kyruume(?) and even Altaria.Sand Veil puts him above all other Dragons..Do you understand why?In a metagame dominated by sweeping Dorryuzus and Tyranitar/sand, Garchomp's Sand Veil allows it to work with this trend and fit right in there.The Metagame itself makes Garchomp the best right now because of Sand Veil.You have to play Sand Veil always because if you don't then might aswell choose another Dragon since Sand Veil allows Garchomp to perfectly fit.
I'm not saying that Garchomp can do everything better than these Dragons.I'm sure Latias is a better Choice Specs user, what i am saying is that Garchomp is the best Dragon right now because of the dominace of Sand and the ability to win any game with just a little luck.
Sand Veil is what makes Garchomp the best Dragon at this point and as long as Tyranitar/Doryuuzu rule there is no reason to ever run Rough Skin even on a bulky set.
You forgot Crimgan. Crimgan is the better dragon to revenge killl The latis and has one of the most unique movepool AND arguably the best ability.
Setting that aside homever, Garchomp is arguably best dragon in this meta because of all its merit.
Movepool ? chomp has horrible but everything all it need on its movepool.
Typing ? One of the ebst typing a Dragon could have.
Ability ? The ability to turn EVERY move to have an accuracy as low as the
"worst move in the game" is very great
Stats ? 130 base attack is high, 102 speed OUTSPEED LANDROS by mere 1 points which is a very threatening pokemon. Also add the fact that he has a very nice bulk of 108 base HP and solid defenses, and passable 80 SpA
Chomp stats is the definition of perfect pokemon in Standard Play
Playstyle ? One of the best pokemon for every kind of weather. In Sand he has sand veil and a very great partner to Hippo and Ttar and dory. In Rain
he can check some things that rain needed and having ice switch in.
In sun He has Boosted Fire attacks, and able to EQ/Stone Edge fire type to oblivion.
That definitely screams awesome