I think with Storm, they have come up with time tested and proven products. Plus, they tend to have virtually all of the bases covered when it comes to arsenal building.
For me personally, the Storm products tend to be a little too flippy on the backend and with the exception of the Hy-Road, they haven't fit me the best.
Now their sister brand Roto Grip on the other hand seems to fit my game perfectly. They tend to still use a lot of very similar covers and cores to an extent. Unlike Storm, they will totally reinvent the wheel when it comes to core design and new covers though.
The Rotary Core is still the best symmetrical core that I have ever thrown.
Now, I really like that I can mix and match pieces between both brands, or that I can stick with one if I choose. That's how complete their lines are.