Which Is Better?

[от_Ian]

Is it better to strengthen your pokemons weakness or to put more effort into it's strength?
Are pokemon with movesets that are unlike their same type (missing out on STABs) more useful in a battle or less useful?

I think it would be a good idea to have a bidoof with moves like charge beam, grass knot, aqua tail, and shadow ball, versus a specialized pokemon that uses only STABS.
But I could be wrong, which is why I'm asking.

And before any one says 'omg, bidoof can't learn those things.' Check Serebii.net's DP pokedex.

 

[Angelic Diablo]

Well when it comes to EV training, it's generally all about strength, except with Blissey (and possibly Milotic) because of an exceptional Special Defense stat, people tend to EV train it in Defense, just so it can take a few physical moves as well

As for what you are saying, it is generally acceptable to be able to counter your weaknesses (eg. A dragon with a fire move to take care of ice types)

The problem with using only STABed moves is that limits a pokemon to only be able to beat some pokemon, and then there will be a couple that would stop it completely (A psychic vs a dark type for instance)

 

[sanjay120]

Fragile sweepers gegnerally just need (special) attack and speed, the exception being a few magic numbers that allow it to survive certain attacks, such as 48 SDef EVs on Dugtrio to survive Jolteon/Raikou Hidden Power Ice/Grass.

Bulkier sweepers need more in HP, some like Agiligross only need a few speed EVs. Metagross is usually slow, but it needs to outspeed other slow stuff before the Agility and fast things after it.

Low-HP tanks (Bronzong, Skarmory, Dusknoir) should always max HP because it gives them more tanking ability. With high-HP Pokemon like Blissey, if you can't absolutely devote 252 HP and 252 in its weaker defenseive stat, the needed EVs should be subtracted from the HP.

Something like that.

 

[от_Ian]

This is really interesting, and I'm going to use what I've learned here.