Re: Drives. Since you are above the minimum firmware required for upgrading drive firmware I would do that first. The drive firmware upgrade kit has kits for all the EQL drives. So if there isn't an upgrade showing, then it's not available. Possibly in the future. It is very important to do the drive upgrades, even if there is only one drive needing it.
re: SANHQ. I would do that last. Upgrade the array first, then do SANHQ.
re: MEM. At the ESXi console you can do: $esxcli software vib list | grep dell
This will show you three files, and include the version info. It depends on what version of MEM you are running and what version of ESXi. If it's very old, I would suggest removing it once all firmware upgrades are done, install the current build.
I would also suggest that if you haven't done so already, make sure that the ESXi servers are configured to EQL best practices. Tech Report TR1091 covers how to do that. You can find it here:
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