I was thinking the same thing, and The Thin Red Line is one of my top 10 all time movies.
I haven't watched The Pacific yet, I'm waiting for all the episodes to air so I can view them over the course of a weekend.
I watched Band of Brothers for the first time about a month ago and tore through them all in a weekend. Maybe everyone posting praise about BoB and dogging The Pacific has seen BoB many times? I can tell you from my one viewing of the series that I had a hard time keeping track of the characters and their stories, the guys looked all the same to me. That prevented their storylines from really digging in until I started to tell them apart. Randomly dropping in new characters, focusing on them for an episode and then moving on was kind of weird. Just as I started to get comfortable telling people apart they grew beards and hid in the snow and I couldn't make them out as easily.
It was a good series and I'm glad I watched it. It did focus on the individuals and their stories and WWII was kind of just a backdrop. There wasn't much sense of "the War" and how that was going, just their squad. If The Pacific takes a broader view, I could easily see myself enjoying it more than Band of Brothers.
I was late to BoB as well, and it took me 2 or 3 view-threws to get all the characters down. I think everyone has had that problem (yes, they all look the same, sound the same, whatever), they just forgot this confusion because it was only during the first of many views. It really helps once you get to the final episode and they name the real vets, and you can then connect them to their characters in the series.
The Pacific campaign has always been the illegitimate child to Fortress Europe when it comes to WW2 history. One of the recent docs mentioned how the names themselves were just so foreign to the average American, thus it was always hard to relate. Of course, operations were proceeding years in advance of Europe, and those of the time began to adapt and learn, but once the war had passed, several years later, that familiarity to the average citizen faded. Not so for the veterans, of course, but the non-vets during that time had much more connection to Europe. And still do.
The depictions of the pacific campaigns in film have always been a bit different. Probably owing a bit to how differently the war was fought, the very strange terrain as compared to "normal" training, the then-unusual tactics of the Japanese, etc. Infantry can't be maneuvered in island hopping and limited land space as compared to what was expected in Europe. A very different type of war, different types of themes emerge. Tends to lead to very cerebral subject matter, I think.