I have a druid 20 (max wisdom, dual flamebade, elemental), and I like the idea of an elemental form 18/2 monk with stunning fist. The animal forms are kind of a red herring for a melee druid at this point. Body of the sun is the one real stand-out druid spell, I don't see any build that can't make use of it really working, and to get the most use out of it you really should melee. And you don't have the mana/SLAs to nuke your way through quests anyway.

I don't think I'm getting much out of druid 20 over 18. The capstone is generally inferior to water stance, and the loss of some 9th level spells isn't a big deal.

Dropping wis to 16 also doesn't seem like a serious problem either. Body of the sun does appear to have a save despite the description, and earthquake DC is important, but it's not a make-or-break aspect of the class if mobs save every now and again.

Probably what I'd do if I was starting over, but I'm not going to do any more TRs or major rebuilds before the enhancements pass. I've also done a lot of wraps builds and am kind of sick of it... I had a lot of fun with my clonk, but I was kind of hoping for something different from my druid than a clonk with a few different spells.