I can tell you that the pella impervia is NOT well regarded and should be at the bottom of your list right next to root canal. The first 3 you have listed are the top 3 on your list.

If that's the case, I suppose I should choose whichever contractor is a trusted installer that warrants their work?

choosing a trusted contractor is very important. A sloppy contractor can destroy many things like water proof , chaulking etc. Choose alum window frame. it will last longer

Do you have specific recommendations?

Pretty big spectrum there of products. On efficiency, the Sunrise will be tops. What did you want the window to look like?

We're going for a minimalist look, so a combination of casement and awning. We're hoping to achieve maximum glass area. Bonus points for robust hardware that will stand up to 3 kids.

Impervia probably has the smallest frame, but if you are going for non-vinyl, the Integrity is a better regarded product.

Got it. If I had to pit the Integrity against a vinyl product, which one would you choose?

Comes down to what you like the look of to be honest. The Sunrise will have a bit better thermals than the Integrity. But the integrity looks more like a wood window.