I was having a lengthy conversation over in the What's a player to do forum: community.wizards.com/go/thread/view/758...
The main question is if DnD 3.5 can be made optimizer proof.
So instead of asking you to optimize a character build, I'm asking you if yo know ways to optimize DnD 3.5 in such a way that it can't be broken any more. I'm not an optimizer but I have the feeling that the core of the problem is the rules for stacking and the amount of material available, even though with Core druid only I think the game is breakable.
What I mean with breakable is that players can get to a point where they perform well above what the CR/ECL mechanic should indicate.
I'm asking for a set of houserules that would make it very hard to impossible to optimize to the point where a CR+5 monster isn't a TPK and a CR monster isn't more than a speedbump.