Here We Go Again

[psidestroyer]

This is another question pertaining to the usage of stat increases. I know this question can vary depending on the person, so here goes.

How do you, as a trainer, know what would be the right EVs to build for your pokemon?

I'll try to explain it a little better, for example for some such as Blissey or Vaporeon they have very poor defense and as a result you may find it best to use one of a Bold nature and max out it's defense through EVs.

However, let's use another example, with a physical wall pokemon (Skarmory). It has great physical defense, but its sp.def is rather questionable. Should you further try to improve it's physical defense or invest more in it's sp.def so it could take a flamethrower or t-bolt?

Do you build your pokemon's stats to better it's strengths or try to cover for stats that it clearly lack in?

I only used the question regarding defense as an example, but many other stats are can also be used in this question.

[MasterToshima]

why dont you go http://www.psypokes.com/lab/evguide.php (here)

sorry,i meant why dont you go here (http://www.psypokes.com/lab/evguide.php)

[SuperSimon]

Different pokemon need different EVs. Like sweepers like to have enough spped to out speed key things, Blissey on the other hand as a wall needs eves for defense because other wise it would die. Alot more then now. For example, Bold 252 def bliss survives a common mix ape close combat. It needs that.

[Seerow]

The general guidelines that I use are:
If a base stat is absolutely stupidly poor, AND it needs a decent stat there to succeed, AND its other stats it needs to use are already pretty good without EVs, invest EVs in the poor stat.
If a base stat is alright, you don't generally need to bother unless the stat is Speed and the Pokémon is a pure sweeper.
If a base stat is high, AND its other stats it will need are already decent or good, AND it has a decent movepool to compliment the stat, invest in that stat because that's where it's probably going to specialise.
If you still have leftover EVs, invest in HP or an other stat that suits your purpose.
This is one of the main reasons not many mixed sweepers can succeed - they need to split EVs between three stats (Atk, SAtk, Spe) and can only max two, and if they max two of them, they can only give 4 more EVs to the other stat. The same applies to mixed walls (Def, SDef, HP)