Recommendation is to use the bash shell, because he is strong enough, and absorbed the useful properties of ksh,csh,sh.
[Dev root @ sd-9c1f-2eac ~]
# cat /etc/shells
/bin/sh
/bin/bash
/sbin/nologin
/bin/dash
/bin/ksh
/bin/tcsh
/bin/csh
/bin/ftponly
/usr/bin/ftponly
[Dev root @ sd-9c1f-2eac /root]
# chsh -l
/bin/sh
/bin/bash
/sbin/nologin
/bin/dash
/bin/ksh
/bin/tcsh
/bin/csh
/bin/ftponly
/usr/bin/ftponly