Re: Just a thought: 2 way synergies
@ OP: How did you play D2 and manage not to notice the 2-way synergies?
I don't know the new skill system in detail so here are some questions: How does the D3 skill system stop point hoarding early on, to put into higher level skils? It's crappy that you have to keep back skill points in order the have a stronger character later on. Have they given any details around how skill respec will work?
They stop it by making it unnecessary, just like synergies.
Synergies were a horrible solution to a much larger problem: useless skills.
Why put more than one point in firebold when you're going to get fireball in the next fifteen minutes? I asked this question during the beta for D2 and was flamed pretty bad but look how it ended up.
Instead of synergies, you have a lot more options and they all add to customization. Basically in Diablo III (for what it's worth so far) you have active skills within a tree, and the rest of the skills are passives that act to bolster or change the nature of an active skill. So your active skill isn't going to be pumped up just through putting points into it, but also putting points into the passives that support it.
It seems to me that there will be a rush of jack-of-all-trades when the game is released and then people will put more thought into a character's skill build, looking at the trees and deciding which active skills to bolster and which ones to skip altogether. But this time, it'll be a lot less convoluted and make a bit of sense.
Aside from skill points, there are also the runes that will do this as well.
If you want more of an overview on this, I would suggest checking out the wizard's skills in the diablo wiki on the site here. Particularly the arcane tree, which is a great example.
edit: duh forgot to mention the most obvious fix to point hoarding: each tier (so far) requires five points in any skill to unlock the next tier. So if you want a tier 2 skill, you must first spend five points in tier 1.
However, I'm sure these numbers will change along with the maximum rank for a skill if they plan on having 1 skill point per level, and 100 levels, or else you are going to have a LOT of skills.