nah, the heatsinks are better on the eVGAs, I've seen a few reviews on the BFG's and they don't overclock further and in most cases overclocked less than the eVGA, currently it's pretty much top as far as OC'ing is concerned.
But yeah, wow I just looked at the eVGA and it's freakin $509 compared to the BFG's $469....how lame, so yeah in that case BFG is definitely more worth it, but still that's a pathetic overclock that they are selling, a whole 20MHz on the core, WHOOP-DEE-DOO