Activating Members

I'm curious; how do you have your members activation set- Do you have your settings set to where after registration, the registering user is automatically activated? Do you have the settings set to where the registering user needs to verify an email notification? Or, do you have it where only administration can accept new members?

Admin activation

I just users User Activation because I like it where memberscan activate themselves without an admin to, and users won't be able to make double-accounts.