Was trying out Voyager and Thunder yesterday. Thunder seems like the winner to me. Voyager's appearance isn't customizable enough for my tastes. I am not a gesture person (I prefer to turn swipe actions for posts and comments off entirely) and really need more tappable things for Voyager to work for me.

One thing I would like in thunder is the ability to hide more of the interface when replying to comments. I have large thumbs and in landscape mode (which I type in exclusively) the button bar takes up a lot of space that could be better used for seeing my typed text and the comment I'm replying to.