Run a Male Chiss BH and a Female Human Smuggler. No complaints. BH's voice sounds hard and badarse, while female Smuggler has a very cocky/playful vibe and she has very cute cracks in her voice.
Also ran male Smuggler, but I hated how he sounded as if he was perma-drunk, and female BH voice acting didn't seem to be memorable to me.
My thoughts as well