wordpress钩子重定向

I want redirect all incoming traffic to homepage. I found solution but not sure if it he best one.

function redirect_sample() {

    if(!is_front_page())
    {
        wp_redirect( home_url(), 301 );
        exit;
    }

}

add_action( 'template_redirect', 'redirect_sample' );

Also i found that can hook to wp

function redirect_sample() {

    if(!is_front_page())
    {
        wp_redirect( home_url(), 301 );
        exit;
    }

}

add_action( 'wp', 'redirect_sample' );

And my question is were is better to hook witch plugin. Also is there any "MAP" when/order hooks loaded in sequence ?