What CP do suggest for Reseller service?

I personally would recommend you using WHM / cPanel. Has a good interface, easy to use and can do pretty much everything you need it to.

cPanel/WHM vote here. Very user-friendly with little learning curve IMHO.

Definitely agreed. cPanel is very easy to learn and the reseller features make it much easier to setup and manage resellers compared to the other control panels out there.

I used most of control panels. Cpanel is better all of them for me. It is easy to use and has more features and works fast.

Cpanel/whm for standalone servers and Hsphere for clustered networks...

Both are highly recommended.... !!

Hi,

cPanel for linux/easiness
Helm for windows/automation

Dan