MailChimp over Constant Contact for sure! (by chrismarquez)
100.00 % thought this review was helpful
I have used MC free for about a year and still do. We are just about to start the monthly service to get access to more advanced feature of Auto Responders.
~ Great free version!
~ Cheaper paid version than CC
~ Easy to use.*
~ Full of great features.
*I believe that all the good email tools/services require a bit of a learning curve if you want robust high quality email campaigns.