watch it on horoth. I tried both ways on my intim and found outside of a medal here and there and one in ten runs a disintegrate, blocking/intimming rocked.
Fighting and intimming left me open to most medals and most spells and my 39 dr went to 6. Massive spell damage and it seems the shield does block many spell effects.
I also hear the 'hate' thing is broken for stalwarts.
good luck on the runs, its fun tanking em isn't it?