I think I can comment on this.
I think more important than the windows is the installer.
I grew up 40 years ago with a hammer in my hand. For many years the only windows installed were Anderson Permashield including 3 homes I built for myself. I think these were/are good windows and while I have not installed the Anderson line of replacement I don’t think you go wrong.
The first thing I look at when looking at purchasing a new to me home is the windows.
When we bought our home on Lake ML in 2013, it was built in 2000, I was very happy as they were Marvin double hungs. To my surprise these are the worst windows I have seen. They leak like a sieve and every fall I buy the removeable caulk and caulk these windows along the bottom and along the latch. This line of Marvins is Pure junk.
This summer moved from Rochester to the Twin Cities area and bought home built in 2012. Upon entering the home walked right over to the windows. I didn’t recognize the brand, turned out to be Hayfields. Lived in Rochester for +20 years and didn’t even know there was a window manufacturer next door. Call around, including the builder, to get perspectives, some loved the windows, others not so much. I was able to contact the builder who commented, he had good luck with them was putting in his new +1M dollar home. After 1 winter, so far very happythe Hayfields.
When I built my last home, the home next door was installing Scherer Bros. Looked great at the time, but turned out to be a disaster for Scherer Bros.
You have many options. I think going with any mid-grade will be a vast improvement over the old windows and will provide years of enjoyment.
Buying windows is kind of like buying a boat, lots of different options, price points, and views.