I wish it was easier to tell a mobs resistance. Been playing with lightning lately and enjoy just standing shocking the crap out of everything, but some spiders seem to be fairly immune.
Maybe I should read the manual. oh wait..
One thing I would be careful of. I was playing my wizard in Nightmare and came across some lightning bats. It appeared that the more I electrocuted them, the more of them there were. I couldn't swear to it (it was late at night and I had been playing for hours) but I was pretty sure that the electricity actually spawned more creatures.
On a separate note, I was curious. If you guys had to rate the big bosses based on toughness to defeat, how would it go? For me, it would be:
1. Balial
2. Diablo
3. Asomdan
It might simply have been that Balial was the first major 'Big Boss' that I encountered, and that, by the time I faced Diablo i was anticipating a tough fight and was ready for it, but I honestly felt (based on appropriate level) that the Balial fight was the toughest (for me).
Any others have this?