Of course communicating face to face or at least via phone is more intimate, but e.g. I prefer to text in times when I am really busy. Talking to someone via IM gives me the big advantage to do other things (or talking to several people at the same time) while texting. Although I prefer talking via phone or face to face (the latter is even better) when talking about major topics or topics where misunderstanding is quite easy. I made the experience that some topics inevitable lead misunderstanding if they where discussed via IM or even worse via SMS. As a consequence this leads to a conflict situation that would have been avoided if you just have talked face to face or at least via phone.
In summary my preference for talk or text depends on the situation and on the person I want to communicate with.