Absolutely watch BoB. I have BoB, The Wire and Sopranos as joint #1 and the distance to #2 is quite some margin.
The Pacific is worth a watch if you're in the mood for 'more' but it's an obvious step back from BoB. It's good, it's just no BoB and after watching both you'd understand.
Do yourself a favour and watch it. I'm not even into war stuff really (wimpy little pacifist) but it's such a good viewing experience and makes you think. Honestly, the penultimate episode is so harrowing yet so poignant (is that the word? i dunno). First time I watched it I just remember not being able to look away from the screen yet wanting to look away.
I may have to watch it again even though I only watched it again last year