I've reviewed all the SSH clients in the Play store and I've found JuiceSSH to be the best by far. The only reason I could think to stay on ConnectBot is the added security (as it is open source). But with XPrivacy I feel the risk is managed. You should check it out!

I also like it and it is sufficient for me, I use it to make tunnels for VNC to get to a GUI on the server to get status updates (I have RAM to spare). Tasker[0] is also a nice option for doing things via SSH.

[0]https://play.google.com/store/apps/details?id=net.dinglisch....

Personally: ConnectBot has weird formatting issues, problems with keyboard input, and doesn't play nice with tmux.

Ultimately it's what I use because it's the most tolerable, but I've yet to find a good Android ssh client.