Electrics can switch into it without much fear? Seriously, besides Lanturn, every electric is 2HKOed by Surf, some even OHKOed, and Kyogre can survive Thunderbolts from all of them.Despite Kyogre's popularity and overall stats, I find it terribly ineffective in any team really. (expecially for uber standards). Stat-wise, its easily the most "power-heavy" water type, but its by no means the most useful or dangerous. Its a big nuclear-powered whale. Thats about it. Its slow, very slow, and super duper blunt. Anyone can switch to a lightning type without much fear and nuke this thing.
I like vaporeon/lanturn so much more. My lanturn can obliterate any kyogre in almost all situations.