If you got a choice between cpanel and zpanel it would be a choice of cpanel matter of all ways...
but zpanel can be good in other ways

zpanel: Copy of cpanel.. Few bugs but its free.. Many features. Good interface and user friendly (in my opinion) it needs a few things.. but again its free.. you cant complain :P its difently a good choice if you have a low bugdet or cant afford cpanel

cpanel: Highly recommended if can be afforded.. Got everything. User friendly, Good interface. I havent ran into any bugs.. But its expinsive and in my opinion costs to much when you can ger zpanel free..