First, respect to Snuffler. A bold, talented pilot and someone I'm wary of. Not because I think s/he's a griefer but because of the aggressive assertion of Snufflers flying style and choices.
Not invincible though.
My nemesis is the Federation and all it's recruited ignoramuses. Exaga is top of the list but I won't (and haven't) attacked him/her without a bounty.
My wingpersons would be any Imperial and especially Illu, G.T. and Jenner. There are plenty of other Imps that I know of that I probably wouldn't attack even if there was a bounty (although I fought with John Stabler*. I won't tell you the outcome; what happens in space, stays in space).
As a general rule, Culture comes before credit when you're Imperial.
I've seen The Kow a few times and, despite his Federal heresy, I haven't taken a shot. There is the future though.
*John fired first (after I scanned him).