I don't know, I like them both equally, I think. For story.. I know BG1/2 so well, that I skip through most all dialogue anyway. Slogging through BG1's mines isn't much fun, or walking for miles to go from level 1 to 2...While IWD has *far* better dungeons and is way better early game than BG1. BG2 has better enemies, I guess - but becasue of all the mage fights and having to dispel constantly, you can't really utilize your own Mages for anything other than stacking protections and removing them on others. In IWD you can *really* have your Wizard blow up hordes of enemies and building say, a sorcerer is way more fun. So in a sense, IWD aged better for me.

But. The Enhanced Edition makes IWD such a cakewalk, you have to refrain from using all the kits and dual wielding and so forth, and that's no fun either. I wish there was something like a decent SCS for IWD.

Fear my wrath, for it is great indeed.