I'm not a huge fan of any of the edge rushers we have really. I like barwin, but I'm with vinny. I think he'd look better playing with a true weakside pass rusher. I'm not convinced merciless is that guy, but he looks more explosive coming off the edge than anyone else I've seen besides watt.
I liked the look I saw yesterday with watt at end and smith at dt when they were rushing the passer.