Get some experience before posting this shit. You talk like you know what you're saying, but you clearly don't. Gyarados is a very effective Choice Band pokemon, and actually maxes out at a very respectable 287 speed. No, it doesn't have the 2HKO power of CB Garchomp or Heracross, but that doesn't make it not effective, especially considering Gyarados makes a very good switch into threats as I said earlier.
If BandGyara was as effective as you say, it would be used a lot, correct? I have not seen one in...so long...that I can't even remember the last time.
If you think Gengar is predictable, then you must get fucked over quite a bit. While there are obviously popular sets, Gengar is far from predictable, and Blissey is not a 100% counter, with Hypnosis, Substitute, Focus Punch and Focus Blast all attacks in Gengars aresenal.
How many SubPunching Gengars have you seen in the last month? I have seen ZERO. I believe I stated, use a sleep absorber then go to your counter, but you must have missed that one...and If it does run SubPunch, it loses 2 attacks worth of coverage, making it much easier to counter.
Hippowdon beats physical Tyranitar sets, but not mixed or special. All it takes is 96 SpA EVs and an Expert Belt for Mixtar to 2HKO Hippowdon with Ice Beam.
So the TTar is predicting a Hippo to come in, sacrificing some attack and/or speed or even defenses, using an item with less use in general than, say, Band/LO, and all juts to beat Hippo. That opens it up to quite a few other pokes, so I say, well done hippo.
There are very few pokemon that aren't OHKO'd by SD Lucario. Bronzong isn't one of them. Gyarados, Salamence, Cresselia, Hippowdon and Gliscor make good counters to SD Lucario (depending on the 4th attack), but they're all utterly destroyed by Specs Lucario.
If you have a poke that you expect ot get CC'ed in the face, and you go to Cressy/Gyara etc... and get Aura Sphered, you know many things. The Luke is special, it doesn't have ES, and it will be locked into one attack, making prediction and countering it considerably easier.
I don't know what other comments have been made, as I haven't read the whole thread yet, I wanted to respond to these before I forgot about them.