Hi,
I have BL460c G6 and G7 in my area and we are using vSphere 5.5 (HP Image is installed). I have no problem with them and they are working very fine, very stable.
There is some recommendation documents about HP servers and vSphere environments, you can found them on HP site and VMware, especially, www.vmware.com/pdf/Perf_Best_Practices_vSphere5.5.pdf
Just, you need consider something about G8 servers,iLO and HP Agent-less Management Service, please upgrade your iLO version to last version and upgrade HP services to last version via vibsdepot.hp.com
And about Emulex HBA Adapters, install last LPFC driver from VMware site and upgrade your HBA firmware to last version.