Now if i was actually in the beta I'd have a better idea of how the game plays out, but since I'm not bear with me if i seem to not know exactly everything this is primarily from what I've gathered through forums.
The way the Stats are Set up if they allowed you to distribute them as you seen fit wizards/witch doctors would become the best and most powerful class very quickly because people would just dump everything into Attack to up their damage and ignore every other stat and enchant/gem Vitality. since they are not melee they would not need to neglect the damage because they shouldn't be getting hit all that often in the first place.
you all complain about not being able to customize and distribute your stat points how you see fit. but if you look back you'll realize you all had the exact same build stat-wise anyhow. Give or take maybe 30 points depending on the gear you had waiting and of coarse if you wanted Melee with a shield you used Dex to cap Block, and enough Strength to use your gear unless you had a inventory of gear like i mentioned earlier, that was ready for use then you'll dump everything into Vitality and use charms and gear bonuses to get you to the desired stat points to equip the rest of your gear. even if you built a Dream Sorceress and went Melee about 85-90% of your stat points went into Vitality and just barely enough to get your gear bonuses to equip the rest of your items.
YOU CANT USE HEALTH AS A FORM OF DEFENSE FOR CASTERS IN DIABLO3, GET OVER IT YOU IDIOTS.
the fact of the matter is unless you were one of the very few casuals that actually played through the game and dumped stats how you needed them as you played the game, these players often referred to as noobs by the many of asshats in diablo2 your stat points were set up hardly any different then any other person with the same class as you.
they just made all the customization through getting gear / enchants and getting the most powerful Runes instead of distributing your stat points, which i think is better because as you all know all your going to do once you get high enough level is farm items like hell to get the best gear possible.
they are actually making your characters way more customizable because all of your skills are actually good through out the game and your not forced to have about 4 skills for each class instead the game is more Gear Driven to up damage and Stats.
Paladin: Zeal, Blessed Hammer, Fist of heaven, Smite
Barbarian:Frenzy, Whirlwind, Concentration, Berserk
Assassin: Kick, Lightning Trap, Phoenix Strike, Venom
Necromancer: Bone Spear,Bone Spirit, Poison Nova, Summons: Skeletons, Clay/Fire Golem
Sorceress Ice: Blizzard, Orb Fire: Meteor, Fireball Lightning: Lightning, Chain Lightning
Amazon: Bow (Not many use a bow-a-zon unless pvp, so i'll guess here) Multi-Shot, Guided Arrow JAVAZON: Charged Strike PIKEAZON *LOL*
Druid-ELEMENTAL: Fissure, Tornado, SHAPE SHIFT: Fury, Rabies, Shock wave