The new chatbox has features like /me and /slap (which i find awesomely funny )
You have /ignore, we have the ability to ban people from the chatbox (not that i think it will ever be needed). It would have the ability to make more channels, but for some reason, that never came out of beta over here .
It has the ability to sticky chats, see who has the most activity, and as the other one, it has a archive. In addition, you have the ability to search within the archive.
And last but not least, it has potential!