What is your favorite tang?
Of my tangs my favorite is the Orange Shoulder Tang. (I don't have exotic ones). Had a powder blue when I started, for about a year, died as I didn't know what I was doing then. I mention it as I find the Orange Shoulder actually more pleasing on the eye, which surprises me.
For me the + of the O.S.T. are: mine has a great character, feeds from hand, is tank boss but still friendly with the other tangs. The main body is two shades of faun, then the Orange shoulder lapel and gorgeous flashes of electric blue in the fins plus some details that catch the light as he swims. The tail has a great forked end. Trouble is it does not photograph well. Looks much more beautiful than my Hippo Tang, which by contrast actually looks better in some photos than in reality LOL.
I personally find the yellow and sail fin tangs can be a bit skittish, and the hippo tangs hide too much. All personal taste.
If my tank wasn't full I'd definitely look at a Chevron. The Clowns are stunning but their aggression would worry me (especially with more than one tang). Nasos grow too huge. Great thread, loved the Acunthus hybrid photographs!