Favorite Big Block Roller Rockers

What makes them best?
Not arguing just asking because they look stout and I want some. Is it everything, like fit, finish, geometry, etc?
Yes, all of that. If you have the RAS and the Comp rocker arms in your hands you'll see the difference. The RAS rockers are very stout, they have a bronze bushing, the oiling is well thought out, they use a high quality adjuster, they have very heavy duty shaft hold downs and they include nice spacers and shims in the kit. It is a very high end set of rocker arms.

Or it was. I haven't bought a new set from RAS since they went out of business the first time. I used to buy rockers from them all the time then the business went sideways. I assume that they are still selling the same grade of hardware now that they were then but I don't know that for a fact.