Reply to DJ Backpack Recommendations

I'm looking for a new backpack to carry all my gear in. I've spent several hours doing research on backpacks trying to find the right one. I've been looking at the UDG Creator Laptop Backpack, the EFX 365, and the DJTT Controllerist. What are your experiences with these bags?

Here are the features I'm looking for:
backpack
airplane carry on size
spaces for a 17" MBP, audio interface (profire 610), controller (largest I'd ever take is a MPD 32--usually smaller ones), and extra space for smaller items like externals, cables, a change or two of clothes, and of course headphones.
If at all possible I'd also like a section with a divider so I can have magazines and papers stored separately from clothes/controllers/etc, this isn't a necessity though because I know not many packs have those.

I know that's asking for a lot of organization from one backpack so if I have to I can put some of the things I'm carrying into their own protective cases and put them in the main pocket like Ean does (e.g. external HDs in cases, cables in a X1 case, etc).

What bags would you recommend for my purposes?

Thanks for the advice!