Best Autoresponder for Versatility?

I've been using Aweber for a while and I'm just impressed with the versatility that it provides.

For example, I'd like to segment my list in such a way that...

1. I have a master list that I can use to drip all of my content to all of my segments.

2. Have separate segments that I can send targeted emails to.

Seems simple enough and saves me a ridiculous amount of time and effort with not having to copy and paste every single autoresponder message and broadcast that I want to send to every single segmented list.

Now I have been able to use Aweber's automation to create a master list but the problem I'm running into at the moment is...

It automatically sends Autoresponder Message #1 immediately with no way of delaying it.

So if I take a subscriber and place them directly on 2-3 lists then they will automatically get 2-3 initial messages before I can control how and when they receive the next message(s)

Is there a more versatile autoresponder that gives you more control over list segmentation?

Or is there an easier way to achieve what I'm trying to do?

Thanks for the help!