I had a fed challenge me once when he thought he had me out gunned with me in my Qin. He is still probably welding all the little pieces back together again.
I have stopped playing PVP altogether I have been focused on Station upgrades and the Reputation leveling.
Finally, to answer your question, It better fits my personality being a Klingon, Romulan to a lesser degree and as for a Fed, after James T. Kirk we were treated to too much whiny melodramatics from the feds. Also General Chang is one of the reasons I enjoy being Klingon.
Klingon Academy is a good tutorial for being a Klingon warrior and Klingon is a good look inside the Klingon world and mind set, I had friends much like this back in the 70's and early 80's ahh, the misspent days of my youth. LOL