Are there any recommendations for virtualizing OES11 with vmware vsphere (ESXi 4.1 or 5)?

1. While installation (near at the beginning) there is a choice for the virtualization type.
The relevant choices are "physical Computer" or "paravirtualized Computer"
Is "physical" really the best choice for vmware, because thats also the setting for fully virtualized guests.

2. SLES11 SP1 support paravitualized drivers for harddisks and usually that is a big performance boost on a suitable server (RAID Controller, SAS Drives, etc.)
What's with OES11 here even if using NSS Volumes?