Should I add my user account to local admin group to manage remote Windows hosts? (Server 2012)

Should I add my user account to local admin group to manage remote Windows
hosts? (Server 2012)

I have setup a few Windows Server 2012 VMs and am experimenting with my
first Core install. I intend to manage these servers with Server Manager
and PowerShell. As I understand it, I either need to add my user to the
local admin group of the remote system or "Manage As" the servers with the
domain admin's account. A 3rd option I can see is creating a new account
that only has local admin privileges for servers that I will be managing
in this way.
Which of the three practices is the most appropriate? (Or is there a
better 4th option?)
Add my user to remote server's local admin group.
Use Server Manager's "Manage As" option to connect to the remote servers
with the domain admin's credentials.
Create a new user that is only added as the local admin where appropriate
and then use "Manage As" to connect.
Something else?