I can only advise on Plesk for Windows, I have never dealt with the *NIX versions.
For my *NIX boxes, nothing but cPanel. It is truly well built and offers so many tools to simplify normal shell tasks. With cPanel everything is well integrated and rather easy to navigate.
I unfortunatly had 5 Windows 2000/2003 servers dumped on me, all with Plesk with Powerpack. Plesk itself runs fine, but everything is buried so deep within the interface compared to cPanel. I had terrible issues with DNS under Plesk on every server, Plesk would decide to drop a domain out of bind every couple of days. I ended up dropping Plesk from these servers and stuck with manual setup for everything since I was not operating a hosting business.
All in all I prefer cPanel over any other control panel on the market. I've tried just about every one but still come back to cPanel any time I can. Good luck!
I've dealt with cPanel and Plesk on both Windows and Linux.
Honestly, cPanel has more headaches and is harder to admin in my opinion.
Plesk has almost every feature cPanel has, I think the only lack is in the reseller abilities.
It is more stable (this has been proven time and again and is one of it's most known items) and also has been shown to have less security problems than cPanel.
Honestly though we use both for the time being simply because of the Reseller part. When Plesk comes up with a good reseller setup, which rumor has it might be in the next full release, we will be discontinuing offering cPanel and only leaving current clients on it.
As for the Windows side, I've done a lot of management for Plesk on Windows and never had a problem with a domain being dropped from bind.
Things aren't buried in the control panel from my experience either. In fact I have more customers thankful for moving to Plesk due to the ease of use compared to cPanel.
I had a plesk server once, absolutely hated it, was slow, you could never hit the back button on it, I couldn't stand the page load thing plus their support is ungodly expensive. I remember once when there was an exploit in horde and they was still running the vuln version I emailed them and asked them if they had done any of their own patches to that or how can I update it myself. They replied with a link for paid support, like $35 or $85 an hour not sure but they sure wasn't even gonna answer a simple question without some cash.
Cpanel is better, faster, more features, and great support team. Every time I have put in a support request at cpanel they have answered all my questions and worked diligently to fix the problem, and for free too!.
I don't think plesk can even compete, only use I would ever see for plesk would be a windows box and plesk being the only thing the datacenter offered
Cpanel all the way X2 - easy to use, better security, choice of all my clients
Plesk is known for its stability and "security." Other control panels such as DirectAdmin and H-Sphere also have much better "security" than cPanel can provide.
Originally Posted by SecureServerTech
I emailed them and asked them if they had done any of their own patches to that or how can I update it myself. They replied with a link for paid support, like $35 or $85 an hour not sure but they sure wasn't even gonna answer a simple question without some cash.
That's because the licensee (most likely your datacenter) has to request support. If I had hundreds of non-customers emailing me for support everyday, I wouldn't help them either. And if Plesk is slow, that's the fault of your server or poor administration.