[MONK] Best way to compare 2 shields

Well, after trying several different Mitigation/EHP tools ( http://rubensayshi.github.com/d3-ehp-calculator/#calculator ) ( Kokumuo's ) I don't see a good way to compare shields.

I have these two shields, one with a really high block and armor roll, but not the resist I stack. The other has the resist I stack, and great attribute rolls.

I can't really decide which is better, I ran through act1 with both, they seem to be pretty close. http://i.imgur.com/LpnVA.jpg

Edit: Going with harbor pursuit, thanks everyone

Can anyone point me towards a mitigation tool that compares two items for damage and EHP at the same time?