Peacock. Taiwan and Christmas moss. Its hard for me to single out one. They have their own fronds structure. Taiwan is more thinner while peacock is more thicker, broader leaf/ fronds character. Christmas moss is also greta for moss wall.
I really love the different fissidens. Mini-xmas moss is beautiful as well, and of course flame moss is a favorite for sculpting. I really love liverworts though, especially mini pellia and subwassertang!
i like fissidens for driftwood and rock because it just has a very clean and neat look as opposed to other mosses that can look a little mess. but i do like either java or xmas moss in moss walls because they grow fast and give a very natural look.