I'd agree with anthony for the most part. The double hung numbers on the Okna are better across the board so in that respect, the Vanguard would be a better comparison, but I do think that they(your two choices) are in the same ballpark... In the Sunrise dh, I do prefer the sash reinforcement. Otoh, the Sunrise casement is very nice-- at least even with the Okna.
Ultimately, you are in rare-air as far as vinyl windows either way, so you'll be happy with either choice. You are comparing a Mercedes and a BMW... Which install company do you feel more comfortable with?
Hi Homesealed. Thanks for info. Just to be sure though, the Sunrise, sunrise doesn't have a reinforced sash? Maybe I'll get a Vanguard quote too. Also, what is Otoh?