Attack vs Damage???

[IanJones]

What is the difference between Attack and Damage and which is more important? Damage is hard to come by so I figured that was more important. Someone also told me that Attack is similar to PL and SL's hit%, can anyone else confirm this?

I'm going to respec my skill points to damage if damage is actually the amount of hurt you put on enemies because I was thinking it was attack this whole time.