I bought the brawler rockers. Talking to the PSC guys for a bit at the Off road Expo a couple of months ago, they preferred those to the rocker knockers.
Based on looks and testimony the Evos are more rugged than what PSC has to offer. But I think the brawler rockers look more finished. It's a balance of form and function for me.
I definitely like the look of body mounted rockers and of them, the Brawler Rockers definitely are about as nice as they come but, with a big enough hit, they will do damage to your body. Just saw this happen on the Rubicon over the summer. The JK's are just so much heavier than the old TJ's and have super thin sheet metal to boot.