Anachronism's team has Taunt/CM Mewtwo, CM Kyogre, NP Rai, and Wobb. Any stall team will be raped by that no matter how well you play.
PokemonMasterHSA's team uses no stat up sweepers (although it does use mixed attackers), which gives him an advantage against team's such as those employed by Anachronism, though it weakens his matchup against stall, of course.
But if an opponent in ubers attempts to overload walls on the special side (which tends to be easier because of the special power in Ubers), there's not much you can do. Blissey and Latias cannot stall it out forever, especially not if the opponent begins to Calm Mind with multiple sweepers (and gets prior damage on CM Latias with whatever, or uses Mewtwo). Darkrai can singlehandedly destroy a stall team as well unless you use a Primeape (Gen. Empoleon encouraged me to do this).
For the record, I got most of my points by beating PokemonMasterHSA and similar teams multiple times in a row, so my offense team isn't at a disadvantage against his type of offense at least in my experience.
His team is very good though, and is definitely tactically superior to mine. It is much more flexible. He can finesse himself out of a lot of situtions that i have to smash my way out of.
And I totally agree with the second part. Stall has so few answers for some threats. The average stall team is almost forced into using Latias (for Kyogre), Groudon (for Rayquaza), and Giratina or Giratina-O (lack of other good ghosts), all of which are weak to ice. Taunt Mewtwo and Standard NP Darkrai can beat stall by themselves. Mewtwo is usually only held back by Forretress explosions and the rather annoying scarf primeape, while Darkrai has much the same situtation with his Dark STAB, which mangles most uber stalls that don't use scarf Primeape. Even Primeape often isn't enough. I beat Gen. Empoleon (in an admittedly haxy match) by simply using substitute on the switch, forcing his Primeape to Close Combat and Pulsing back as it kills the sub, switching to mewtwo, and then bringing back darkrai later, pulsing again in the same scenario, killing the ape and opening a sweep.
The fact is that uber walls have to deal with a lot more attack, with not much more defense than OU walls. The only real advantage is that there are a lot fewer threats to deal with and you can rely on the fact that you will be able to easily counter half of the opponent's standard uber team due to high usages, but this is mostly mitigated by the number of sets that ubers are able to use. darkrai is ridiculously difficult to deal with. It is capable of beating anything with its various sets. Rayquaza has two setup moves that give it entirely different sets of counters. these kinds of things make uber stall incredibly difficult, while uber offense enjoys a relative ease of use.
There are a lot of threats that all have very specific counters, meaning that you can't double up on counters to most threats like you can in OU.
Offense is also easier to use against new players, something that stall does better in OU. This is because you don't have to worry about random sets. Simply get rid of obvious scarfers and then use your speed to beat what they have. Uber offense is all about speed. It is the only factor you have to worry about.
I would also like to comment on Jibaku's statement that there is so much centralization that seemingly terrible pokes work well simply because they counter a top threat well. There are so many examples of this: Primeape beating Darkrai, Shedinja, Kyogre counters like Quagsire and Parasect, etc.
It is really fun to play in a metagame full of predictability at least in the pokemon usage sense (there is a lot of move unpredictability) where such random things become viable.
I also enjoyed the chess analogy. The pokes are predictable, but the moves they make aren't, and this is great. It in many ways maximizes strategy.
