I have all of the above except the ZS10 Pro. I would choose the Tin T3 from your list, it is neutral with a bright treble ( but not as bright as the C16 or A10). With the right tips and a good seal it also has deeper bass than the CCA models. If you like a V shaped profile the ZS7 is a very enjoyable IEM.
I was tempted to buy the cca A10 after reading your review, im affraid that its too bright for my taste. I ended up picking the tin t2, the z review on youtube said that the t2 have more sound stage than the t3 with more neutral sound which is good because i use it for gaming too. Will give an update after i tried the t2