For my girls, I have all different blankets
partially because they are all different sizes and they have different needs.
Ginisee- I use a light weight turnout and a medium weight turnout. She gets extremely cold in the weather here (KS) so I also got her a nice stable blanket to put under her medium weight when it gets too cold. It works nicely. She uses a Weatherbeeta lightweight and an Orican medium weight. The stable sheet is a Shire brand.
Uma- I have a light weight turnout and a medium weight turnout as well. They are both Amigos and they came in a sort of set (they match at least!). I have a stable blanket for her too and use the same method as Ginisee
Demi- a little different. She gets very very cold so I have a light weight (McAllister's), a stable blanket (also MA) and a heavy weight (MA). I put on the light weight and stable blanket to make a medium. Haven't had to use the heavy yet.
McAllister's are less expensive but AWESOME blankets. Orican, Amigo, and Weatherbeeta are a little more expensive. I have had the Amigos for two winters now with no rips or anything and the Weatherbeeta nd Orican for about five winters. They have had to be patched of course but nothing else. I've only had the McAllister's for a short period of time so I don't know how they hold up.