Oh you mean that thing that Blizzard did not do when they could have, its called balancing. The mechanic worked just fine. How many stats that went into Vitality,Dexterity, Strength, and Mana were not set in stone, you modify skill cost, types of cool downs and power bonus's and you have a completely different setup, that is more agree-able to diverse builds. Don't blame the mechanic, blame the numbers that were never challenged against each other.
I respect your opinion Xel but I have to disagree with you here. Diablo 2's system worked for the time, but once it was figured out there was only one "right" way to become powerful and on an even playing field as the rest - to min/max stats (as in enough dex/str for gear and rest in vit, generally) and pump 1 skill and its synergies.
The new way is quite good - the passives all look good, there are multiple types of skills for each character, such as the barbarian having multiple mobility and anti-CC skills, multiple nukes, multiple spammables, etc, and they all mean something. 95% of D2's skills were useless, I'm afraid, and the new system encourages experimentation much more than the predecessor ever did. I think this will bring in an element of replayability even D2 never had.
d3 is gonna pwn like tom brady with 2 sojs