Originally Posted by Fat Misdreavus
Do none of the great players really use 252/252 spreads anymore (except on a few things like Latios)?
Also, when EVing to survive a specific attack, how do players determine how to split those EVs between HP and the appropriate defense? I know that the EVs in Def/SpD make more of an impact here, but the HP EVs give you bulk on the other spectrum too.
Nah, it's rare for 252/252s these days. It usually does end up in wasted stats. In Wolfey's teams this year there was only one 252/252 spread and that was sashed max speed dragon dance Tyranitar, which needs that 121 speed to get over the many mons with ~170-180 speed after 1 DD.
Like for example, when a good player (such as myself :D) runs say Rampardos, they don't put EVs into its attack stat. That's because each EV contributes less to the already-huge attack stat than it does to the smallish defences. Think how 252def in a blissey reduces damage massively while 252spdef doesn't make a huge difference.
As for HP/defs, ehhh, I just put a bit in both usually. You just know how much in each works, to be honest. Usually I put some in HP then a bit less in whatever I need to defend from more.