How to build a good Pokemon team?

[Mnementh]

Player2 said:

2 - Yes. to all. This is the damage formula (quite pretty!) (found in this Bulbapedia page, more info there):

Of course there are plenty of modifiers:

Thanks. I added that to the OP. That brings up the question of Accuracy, but it is easy answered: http://bulbapedia.bulbagarden.net/wiki/Accuracy

Basically the value in the attack-description is the percentage, no stat is involved, only moves that change the abilities and items. So does it make sense to use an attack with high damage but low accuracy and hold an accuracy increasing item?