I vote for cPanel also, after what i experienced with directadmin i will not use it for other servers anymore.
Another vote for cPanel... Ease of use Support & Community Visually appealing interface Widely recognised and more or less the industry standard
I've always had cPanel installed on my web server, just for convenience of creating accounts. However, most admin tasks are done via the command line so I guess you can add another vote for the bash prompt.
I have to say that 'cPanel/WHM' is better. Just because of it is used more widely nowaday. It's become popularity so if you use another software, your business might die.
Yet another vote for cPanel. There are some other good ones, but most just don't have the amount of features that cPanel offers.
cpanel is the best, but cpanel make more resource.... try directadmin... because not make more resource
cPanel is expensive though worthit. More webhost are using it for it has many plugins and is the most popular panel.