Cpanel vs Plesk?

Hey all,

I recently got a managed server through peer1, and they installed plesk on it, which so far has been an absolute pain in the ass to use. (3 days to get a wordpress blog installed on it. Lol)

Does anyone have any experience with the difference between the two? Wordpress running on Plesk or on Cpanel? Easy of use/scalability/tech problems?

One of my good techie friends loves plesk, and another one despises it. Lol. Looking for some good information from multisite owners.