Tyranitar makes a great lead. If they have something like Lati@s as their lead, you get to trap it for free with Pursuit. Lati@s are common leads thanks to Kyogre being so popular. If they lead Kyogre or Groudon, sure, you have to switch out, but at least you've claimed the weather.
This means you don't have to worry about their Surfs or Thunders as much.
I didn't mean Surf on Tyranitar. I meant its Surf / Water Spout would be weak when I switched to, say, Blissey.
Excellent guide! Ubers are much more fun IMO. Though, for leads lately I had fun using Yanmega to LOL at mewtwo, and darkrai, and somewhat Kyogre. Scarfgar is also a terror in ubers, using thunder to maim Kyogre, HP Ice revenge kills ray (and he is immune to ESpeed... Wonderful), Focus Blast nails Dialga and can finish off an Arceus (again, no extremespeed) and Shadow Ball can rip through Psychics at the end.
And let's not forget about my piece about Kingdra. It is the best mixed sweeper in ubers. In the guide you mentioned a Choice Specs, but it fairs better with Life Orb, and has permanant rain with our favorite whale. It can clean easily in ubers.
Regarding Kingdra I wouldnt say it's the best Mix sweeper as Mewtwo, Deoxys-F, Darkrai and Dialga all outclass it as far as i'm concerned. If anything i'd probaly change the word Choice Specs to Life Orb and mention something about it being able to mix sweep due to Waterfall.
Tyranitar makes a great lead. If they have something like Lati@s as their lead, you get to trap it for free with Pursuit. Lati@s are common leads thanks to Kyogre being so popular. If they lead Kyogre or Groudon, sure, you have to switch out, but at least you've claimed the weather.