nepals are a reliable go-to. they'll be warm enough for everything in the northeast, except maybe the coldest days of the year on Washington/Katahdin. and they seem to last forever.
I've had success with scarpa omegas, climbed in the Ruth Gorge and did Ptarmigan Ridge on Rainier with them. they're a plastic double boot, and are about 150 grams (per boot) lighter than nepals. I think they climb just as well as the nepals (did fafnir and the dike with them last year, no problems). I find them a bit warmer as well. and they're about $100 cheaper than nepals.
that said, they take a bit more attention than the nepals. if you lace them too tight, you'll have terrible shin bang. since they don't breathe, you have to use a vapor barrier sock with them or else your inner boots will become a swampy dungeon. I also attached some velcro to the inner boots so I can cinch them tight while leaving the plastic boot loose.
