Hi - You can choose glass glazing options for either vinyl window that can help with noise control, if that is a concern. Also, the handles used on each are different. Style Line Series has a Positive Action Lock and Tuscany Series has a SmartTouch lock which is very easy to use. If you have a chance to visit a showroom, you should try them both out to decide. Also, Tuscany Series comes standard with Glass Breakage Coverage in the warranty, and Style Line Series does not.

Marvin in my opinion is the better product with top notch customer service (dealer dependent of course to some extent). That being said the Milgard is not bad and a solid company to deal with from what I have been told (albeit a few years ago as they are no longer on the eastern part of the country.

About a year ago we had all our windows and a patio slider door replaced with Renewal by Anderson's new Fibrex windows. The Fibrex is a composite of wood fiber blended with a polymer: it wont flake, rust, blister, peel, crack or corrode, is 2x stronger than vinyl and resists warping. I live in NJ so we chose the Low-E4 SmartSun glass: their most energy efficient glass option for cool and hot climates and blocks 95% of UV rays that can damage drapes and furniture. They are easy to clean, and look good; there are all sorts of styles to choose from. They had a very experienced team install them in only 2 days. I researched all sorts of brands of windows and chose Anderson. The warranty is super and is fully transferable should you sell your home. Best of luck in your window journey!

Elevation drawings and or pictures would help. As well as pictures of the glass choices so people do not need to go look them up.