if you have costco membership, they have some on sale.

I think they are good quality and very good price.

I bought the pacific coast brand, and they are only half of what Macy's are selling.

For current temperature where room temp is around 70, I think level 3 is good enough for me. It will correspond to a medium weight or year round usage type. My current one I use it for winter too and it's fine. Level 3 will be too hot for spring/summer.

fill power higher is better. I view that as some kind of volume measure.