PS We're not arguing, it's called friendly banter :-)
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Nature: Adamant (+Att, - Sp Att)
EV: 4 HP/ 252 Att / 252 Speed
Dragon Dance
Earthquake
Rock Slide/HP Rock/Ancientpower
Taunt
Nice one, you have Taunt. Tauntratar can be awesome if you can predict right, can stop slow tanks like Umbreon who generally don't have any direct attacks, can stop people hazing away your Dragon Dances, and gives you the time to set up DD for sweeping.
In order to get Dragon Dance onto Tyranitar, you'll have to do a bit of chain breeding. Since Tyranitar is only in the Monster egg group, the only other Pokemon in that egg group that learns Dragon Dance is Charmander and his evolutions.
Chain is: Gyarados -> Charmander -> Larvitar.
Zapdos: generally looks ok. Consider HP Grass or Ice over Light Screen, it can hit opponents that would stop Zapdos in his tracks like Swampert.
Skarmory - Drill Peck and Whirlwind is an illegal combination of egg moves (they can have one or the other, but not both). Use Roar if you want Drill Peck, and if you want Whirlwind, use HP Flying. You can even use Steel Wing over your flying attack if you like.
With Skarmory, you want to use his Defence to your advantage. Fixing up his Sp Def won't help him much, since he'll die just as quickly and it'll be a waste of EV points. The key here is switching to something that can take special hits for Skarmory, on your team Cradily does that role, and Registeel to an extent. Skarmory's role on a team is usually to take physical hits, set up Spikes, and use Roar or Whirlwind to force as many Pokemon to hit those spikes doing up to 25% damage per switch.
Slowbro - awesome Pokemon. I'd use Surf over Psychic, Slowbro doesn't get STAB for Psychic, and besides Surf hurts more stuff. Bold nature and high Defence and HP EV, Calm Mind covers his Special stats.
Registeel - Curse + Explosion hurts. Registeel can stall enough without Rest, but I'd recommend using that if you want to stall rather than explode.
Cradily - Mirror Coat set, works ok. I've only used Cradily a few times competitively, and I found they could be a little too easily countered. Maybe I just didn't have enough luck.
If you're looking at Wobbuffet and Latias, try making an uber team instead. Wobbuffet is generally banned from standard play because it can be very easily and cheaply utilized.