I personally hate this argument. A lot. Ubers may be a banlist, but it's a tier first.
I personally hate some arguments too: though it wasn't an arguments it was a statement. Ubers is a banlist first, tier second. Why? Ubers is not based on usage, the only way Ubers changes in terms of what pokémon are considered Uber is through a ban from the OU tier. Smogon (Pokemon) tiers are based primarily around usage, with bans in case a pokémon that is in said tier (or below, but I've never seen that below) is (considered) too powerful due to various reasons. I'll say it again: Ubers was created initially as a banlist for OU, which due to it's sheer size evolved into a metagame of it's own. I like the creation of new tiers in my opinion, but the fact that ubers is a banlist is as true as fish in the water. (That comparison sounds better in my language...)
Ubers is stable because nothing is blatantly broken within the realms of the Ubers metagame.
Funny statement, but I can't deny it because I don't play ubers.
Of course, if you attempt to look at Ubers Pokemon from an OU perspective, obviously, everything is broken and cannot stay.
Ubers was created because certain pokémon were considered broken and couldn't stay, your point being?
If you were to look at OU from a UU or RU or any other lower tier's perspective, wouldn't OU be broken as well?
I presume you mean OU pokémon, because a tier cannot be broken from another tier's perspective. Because barely anything is alike...
Alas since you insists on considering OU pokémon broken from another tiers perspective: are these pokémon really broken in lower tiers?
-Donphan
-Forretress
-Gastrodon
-Jolteon
-Magnezone
-Tentacruel
-Toxicroak
-Vaporeon
I'm just stating the most obvious ones here. It's true that a lot of things in higher tiers are broken in comparison to it's initial lower tier (let's not be silly and compare OU to NU). But not everything is. Tiers are based on usage, not on power. Farfetch'd could be OU if it was used enough: even if it doesn't do anything (like it always does), but will it ever go to ubers? No, because ubers is a banlist and banning Farfetch'd is idiotic, though it can totally OHKO my caterpie it's far from broken. The power of pokémon in a tier (OU) in comparison to a tier below itself (UU) is indeed true, but that does not mean everything in higher tier is broken in the lower tier in and of itself: usage is the keyword.
However, within the Ubers metagame, most things are balanced, with the exception of maybe Arceus-Normal / Arceus-Ghost (and even then, Arceus-Normal has a fair number of checks / counters).
Again, can't say anything for Ubers. But I've heard that Arceus is one of the few overpowered-ish things out there. And again: it's good to hear Ubers functions well as a tier, but it's still a banlist for OU. Nothing with a high enough usage in OU will go to Ubers, and nothing with low usage in Ubers will drop down to OU: because I'm sure there are things that aren't used in Ubers that are in fact: Uber.
Ubers is a fully functional tier, in which you can arguably run more playstyles than you can in OU (for example, stall is pretty strong in Ubers).
Stall is viable in OU, don't assume it's not. Because it's not as strong/easy as it was doesn't mean it isn't used/viable. It's true that full-stall can't be used in OU, but honestly is OU the only tier where full-stall is unviable? I honestly doubt it. Stall has changed and is right now making a small but steady breakthrough with the banning of Lando-I. Heck even solo pokémon can still stall reasonable well, even if all the other pokémon in said team are offensive-orientated: look at subroost Kyurem, Subseedloom and venusaur or any of the pranksters.
All the playstyles are still viable in OU, relying on weather (unfortunately): rainstall, sunstall, sandstall, hailstall, weatherlessstall. There is an interesting amount of variety in what can be used, so joy for all here. Also you may say arguably, but where are the arguments?
We could still use tiers based on usage,
Why wouldn't we?
but rather in relation to Ubers instead of OU. It's not that hard. "Ubers" is just a name - we could call it SU for Super Used or IOU for Incredibly Over Used (I'm kidding but hopefully you get the point).
Don't kid yourself, it would become a massive mess very easily, and you know it.
Furthermore, a "standard tier" is extremely objective,
subjective*
Also OU is the closest thing to a main tier: the main tournaments people are interested in, and even the yearly/periodically tournaments are held in OU: look at WCOP and the Frontier.
and now, as Ubers is arguably a better meta than OU is,
Then where are the arguments? I've heard it's balanced: ok. Why?
why can't it be the "standard tier"?
Because it's a banlist, because it's not based on usage, because OU is far more popular, because OU has always been the 'standard'-ish tier. I repeat: no tier is a lesser tier than another, but OU is the mainest of tiers because it has always been the main tier and will always be because it's the most popular, is the top tier in terms of usage and the tier that the largest part of the community strives for: whether it is for discussion, theorymon, set-making and tournaments.
Because idiots on the ladder bitch about "OH MAN U USE LEGENDS U R NOOB"? Most of those idiots suck at Pokemon anyway.
Idiots will always bitch, not to mention the standard noob response in terms of legend-usage is used in OU nowadays anyway: look at how many legendaries already roam OU by now. Also good generalisation, have a thumbsup.
Edit: also I've been called names, a noob and have even been told to kill myself because I run stall. Go figure what demographic we have on the ladder..
I'd honestly really like to see Ubers renamed (as "X" Used), and get recognition as a tier, possibly even as the standard tier (it's been discussed a little bit on #pokemon).
It's a tier, but it's also a banlist. Get over it. It won't be the standard tier anytime soon, unless Smogon undergoes massive changes in it's forums, users, regulars and goals.