Springs are more of an individual variable and it's more difficult to absolutely recommend a spring that will work in so many applications like the Koni S/A component. Stock springs don't feel that bad until you get those speeds up there. I like my 1le springs.
I always recommend Konis because of not only their versatility, but also the fact they are the premere off-the-shelf handlers for fbodies and endless other vehicles. Revalved Bilsteins are a great budget alternative to Koni S/As, which seem to be the more popular choice these days for some reason.