My OTTB has a few Saxon, one Weatherbeeta, and one Tough1 blanket....I have horse blanket obsessive compulsive disorder....
Saxon: ok. Tend to run a bit small so if your horse in chunky or in between sizes, you may want to order a size UP. We have had some waterproofing problems after time....it seems as if the waterproofing doesn't last as long as it should...i mean after years, not days or weeks. But it's only ONE of the saxon blankets, the other two are still waterproof, but they aren't as old as the other one.
Weatherbeeta: these seem to be a bit more quality blanket. He has one of these and we like it. They tend to run a bit larger, though. So if your horse falls in between sizes, you may want to order a size down.
Tough1: he has one of these and we really like it. He has the zebra print one that stateline carries. IT's a heavy weight though, so if you can find this blanket in a light or medium weight, it is a very good blanket.
Some good blankets you may want to consider: since he's in a herd and an outdoor horse, denier matters...you want a high denier blanket....
Saxon 1200D Medium Turnout Blanket 150g - Statelinetack.com Weatherbeeta 1200D Original Turnout Blanket - Statelinetack.com Tough-1 1200 Denier 200G Turnout Blanket - Statelinetack.com
I see some brands I don't recognize like Big D and TuffRider....perhaps others have had some experience with those....
The most important thing in your circumstance is at least 1200 denier and fill around 200 grams or less.....