Okay here are the quotes I've collected for Hiei. Some of them will not the that good because he doesn't really say anything really weird. Anyways here are Hiei's quotes:

"Does a death wish cause you to speak that way to me?"-Vol. 4

"So Mr. Flat Face is not a complete idiot after all."-Vol. 4

"I didn't do it for your sake!! This will go faster with backup."-Vol. 4

"You dolt. Kurama made it look easy, but you'd have been dead at Genbu's first strike."-Vol. 4

"Not bad... Not quite the dead weight I took you for."-Vol. 5

"You're going to take him alone? I thought that was all talk."-Vol. 5

"He fused reiki end to end. that's absurd."-Vol. 5

"I won't kill you. Yukina's worth far more than your pitiful life."-Vol. 6

"I don't know how you did it, but your skills are almost adequate."-Vol. 6

"Problably right. We might have to kill everyone aboard... So there'll be no one left to complain."-Vol. 6

"Looks like we're up. Ah well, it's better than sitting around..."-Vol. 6

"Great, but what's with all the samurai posturing?"-Vol. 6