This entire page summed up into a sentence: use ubers in ubers.
Tormentran is slower than everything in ubers, even modest max speed base 90s. There are so many common sets that deal with it its not even funny.
Quagsire is terrible. Don't get me wrong, recover and encore are awesome, but it will do little to no sweeping, and will essentially just force out ogre (assuming it isn't specs, cm, or LO and has ice beam, which beats it) while everything else dies slowly. It contributes little to nothing offensively.
Ubers have the offense and the defense to do what needs to be done. Just use ubers!
On the subject of torment though...how about torment mewtwo? huge speed, good defenses, no real resists to speak of but few weaks also. I could see it working.