As a general rule, I think it's good to try different blades. If for no other reason just to see what you may have been missing. For many years I used Olson, just about exclusively. I had a bad experience once with FD #2/0 reverse tooth and just stuck with Olson ever since. The Mach series were my go to for general fretwork. I tried FD again when I needed some good spiral blades. The experienced portrait cutters in my scroll saw club all use FD spirals, so I ordered some. While ordering, I decided order some FDUR, just to try out. I was impressed with them and they may supplant the Olson MS blades as my go to blade.
I tried some PS Wood Super Sharps a while back. Very good blades, but too expensive for general use, at least for me. I've not tried Pegas yet, but want to give them a go as well, one of these days. Moral of the story, I don't think any brand has the best blade in all sizes and tooth configurations, so if you use a wide variety of blade styles, then it pays to try different brands.