First of all I am not endorsing Intelligent Design (Wikipedia link); I'm asking this because I (someone who does not have a background in biology, organic chemistry, or philosophy) got into a conversation with someone who does endorse it, and I'm trying to see his point of view as far as rationality can allow. Second of all, I apologize for any vagueness; Intelligent Design isn't well enough defined as a theory for me to help that. I also apologize if this is rehashing content already plentiful on the Internet, but for my purposes I can't simply depend on the likes of Wikipedia or Talk Origins, so what I'm looking for here instead is to take the opposite approach and see, based on your informed minds, if there could possibly be any reasonable likelihood of an ideal ID theory being adopted.
I'm looking for the most favorable consideration for what ID might be if it were best developed as a viable hypothesis or theory to get an idea of how far such a discussion is worth taking. An unbiased, informed Devil's advocate, if you will.
My cursory investigation of what Stephen Meyers (video link) and Michael Behe (video link) say (correct me if I'm wrong) seems to be that either the first cell was likely designed intelligently judging by the complex code of DNA and that evolution took course from there, or that the first cells were made and many instances of evolution were from some kind of intelligently guided mutations as was needed to make "irreducibly complex" cells or body functions (whether the guidance stops after the Cambrian or continued even to the point of making different types of new bacteria and different types of apes/humans or whether every single mutation and adaptive ability is being guided, I'm not sure if they're at any consensus, and that's why I don't know if I should stop my question at abiogenesis or include evolution). The person I spoke with also brought up some specific claims (everything looks designed, DNA has ordered, complex information, blood clotting is irreducibly complex, ID can and has make predictions like decades ago that "Junk DNA" wasn't junk) that I don't need you to debunk (I have Google).
But if there could be any possible support or truth to any of the above, I would appreciate knowing about that. (Again, Devil's advocate so I can be informed and understand where the points come from.) Reading an ID book alone, it would be in places hard to know where they differ from actual scientific conclusions. After all, when someone who seems to know what they're talking about and can explain something in technical detail says that something is impossible or extremely unlikely, it's hard for me to know why they would be wrong (are they ignoring other possibilities? misrepresenting facts? are they really right and just getting the cold shoulder from an atheistic scientific community because it implies a deity?). So I focus on mainstream sources, even if they don't bother entertaining ID and leave me ignorant of its possible virtues. And thus I'm hoping someone from this informed community might enlighten me to what those possible virtues might be.