form_for vs form_tag vs form_with params

form_for.html.erb

<%= form_for(:session, url: login_path) do |f| %>  
  <%= f.label :name %><br>                         
  <%= f.text_field :name %><br>                    
                                                   
  <%= f.submit "Login" %>                          
<% end %>                                          

<%# To access the params in your controller its simply: %>
<%# params[:session][:name] %>

form_tag.html.erb

<%= form_tag login_path do |form| %>       
  <%= label_tag :name %><br>               
  <%= text_field_tag :name %><br><br>      
                                           
  <%= submit_tag "Login" %><br>            
<% end %>     

<%# To access the params in your controller its simply: %>
<%# params[:name] %>

form_with.html.erb

<%= form_with(url: login_path) do |form| %>
  <%= form.label :name %><br>              
  <%= form.text_field :name %><br>         
                                           
  <%= form.submit "Login" %>               
<% end %>                                  

<%# To access the params in your controller its simply: %>
<%# params[:name] %>