Windows Server 2008 - Which version of Plesk?


I am moving to a new Windows hosting environment and I have a choice of Plesk versions.

I am currently on version 8.6 and the latest stable release (according to Parralels) is 11.0.

I asked to have version 11 installed but my host says that 10 and 11 are buggy and that 9.5 is the latest version that they consider to be stable. They are happy to install any version though.

Can anyone else comment on this? Thanks.

Plesk 8.6 is more stable version as compare to other plesk products but on windows 2008 plesk 9.5 is found to stable than the latest plesk versions.