Ive got both a plesk 2.5 box and a ensim 3.1 box. As far as the control panel itself, the ensim panel seems to be organized much better and is setup for simple tasks.
The plesk box on the other hand is sometimes a little rough to handle seening how you have to go all the way back to the hosting page for a domain just to change its ftp user and pass? Seems a little strange to me.
But as a php programmer i enjoy the ease of the mysql database and the abilaty to forward or transfer urls in plesk where its impossible in ensim.
A large majority of my clients are part of some gaming community and require forwarding subdomains which they wish to setup whenever they pease to point to their gaming server stats and so forth. With plesk its possible, but with ensim...its just not there.
Id say that plesk as of the latest releases is the best panel ive ever used. The only problem is that it costs and arm and a leg. Im just glad RS sees the point that a panel is required so we are not all forced to install something like webmin on all our boxes....lol
my 2 cents
http://www.nacarls.com
support@nacarls.com