I plan on running about 550hp in my new engine, looking through rotaing assemblies, is there a major difference in quality in a full forged Compstar vs Forged Scat vs a Forged Eagle Kit?

I noticed about a $300 difference

 

I'm not sure if there is a major difference, but basically most people say if you have the coin to go with Callies Dragonslayer crank and Compstar internals but Scat and Eagle are reputable as well. It's basically personal preference IMO.