callback method vs event listeners

I have developing a game in AS 3 with MVC pattern. In my document class, I have created around 15 event listeners to update the game view.

My question is instead of event listeners can I use call back function?.

I have tested the sample file by replacing the addeventlisteners with callback function. It is working fine.

I think compare to eventlisteners, call back will took less memory only ().

Any suggestion please?

thanks in advance