I've used silky, samurai, and stihl (which I think uses ARS blades). I liked samurai, but I think dead wood is harder on them than on silky. The stihl saws were aggressive, but not as smooth as silky. I end up using about three blades a year, but that's because I use my handsaw a lot. If dropping the money is an issue, samurai would be my second choice. The blades are cheap, and they do cut quickly, as Oroboros mentioned. I don't like wearing samurai on my leg because the handle is more easily hooked by rope and brush. However, it is a comfortable grip.
With Stihl, I recommend finding a true ARS saw. The black and orange paint always seems to be more expensive than other color combinations.