I miss the way Diablo (1) did Attributes and Spells. Yes, they had 3 classes, but, you could tweak and modify them to make, for example, a Warlock (Warrior with decent spell casting) or just a straight up Warrior (pour points into Strength etc.). And playing as the Wizard was always (mostly) a unique experience from character to character as you were never guaranteed the same build (spells) as the spell tombs were drops, which I believed added to the value of exploring every inch of a level.
I'd love top see Diablo (1) redone in todays technologies (graphics, etc.). I miss that each game was a true unique experience and each build was pretty unique as you were a product of the drops the game gave you and the control you had over attribute points.
I guess the Torchlight games are closer to that, but I'd still love to see Diablo (1) redone.
So... my suggestion to them would be a re-write...