Things that vvvv can do but Touchdesigner can't

vvvv beta question
3

I realize this has very little meaning to it but heard a lot of stories which people switched from one to another. And I want to learn what caused them to - to be more specific, this will help me decide which one to go deeper with. I mean it takes serious amount of time to become an advanced user and I want to make the right choice as it will take a lot of time an effort clearly.

Not trying to start a fight here just wanted to hear your thoughts, there are loads of topics I read about such comparisions, just wanted to hear more thoughts from the people who actually dove all the way down. Thanks for the warm welcome by the way :-)