Over on Yog-sothoth.com, the best English Call of Cthulhu website, we've pretty much banned d20 v BRP discussions. They don't really get anywhere beyond expressions of taste. There is some realisation that the two versions of the game tend to produce a different feel but that's probably as much up to the GM as anything.
I've run a fair amount of d20 CoC in a modern setting with the dial set to fairly pulpy and it went pretty well. There's an actual play of it
here.