I've almost completed my 3rd season with my first pair of Attack pants. They perform and are holding-up great. I bought mine in the color gunmetal for an all-around outdoor pant.
There have been great recommendations. I would also take a look at the SKRE Guardian Late season bibs. The bibs have the features you are looking for including warm, waterproof, two-way chest zipper, and full-length side zippers. The bibs are also windproof. SKRE does not list a tall size on...