One thing I like most about MailChimp is it has a free pricing option whereas AWeber has $1 option as a starting point. That means you can create a free account on MailChimp without giving your credit card details whereas you need to pay $1 for first month to start using AWeber. You can try AWeber by just paying $1 for first month. After that, you need to pay $19 each month.
The Autoresponder 2.0 is probably the most advanced feature that GetResponse launched a couple of months ago. With their new autoresponder feature we can now create message cycles that are timely and relevant — all adjusted precisely to subscriber needs and expectations and send them automatically. As a result the open and click are higher and hence lead to more conversions. - Ram Shengale
On the other hand, you have pointed out a problem that Aweber should address and that is their training and instruction materials. They should definitely have better video and written tutorials on how to use everything. And while I found the ‘get started’ webinar extremely helpful, years ago, you shouldn’t have to get on a webinar to learn about the product. At the very least, they should record one of those webinars so you can just click and watch any time you want!
Even if you've imported an existing list of contacts, you'll still want an easy way for new fans to join your email list. AWeber's sign up forms provide the perfect solution. Create a simple sign up form for your website, and if you don't have a site, we'll host it for you. Grab the link to your AWeber form and share it on Facebook, Twitter, LinkedIn, or wherever your audience is.