4-6 lenses really does need to be better identified - small primes, or white zooms? Are your bodies gripped or not? The flycam / table glider need to be better identified as to their size. Are your filters circular or are you using a Cokin/Lee setup? Are you using the tripod head on the glider?
What is your second carry on? Most every flight allows 2, so why are you forcing everything into one? Since it is more about getting on and off a flight, might want to see about getting a maximum sized duffel bag, and put your two camera bags into it to fend off any flight attendant or counter agent.
I picked up the Niko Messenger from Chrome in San Francisco, and love it, though hate how easily I can overload it. It fit: H4d-50 with 28mm, 50-100mm, 80mm, 210mm lenses plus a EOS-M with 10-22 and 100-400 lenses and a 15" MacbookPro. DAMN it was heavy.
I was going to look at the Gura Gear bags, and use their no questions asked return policy if it didn't match up to my needs, but I'll save that for another day.
I use fast primes exclusively, so no zooms, white or black
No "big" tele lenses either! I don't have anything longer than 135mm that will be included in those 6 lenses, and I don't plan on having anything longer. I didn't identify the lenses because I'm not sure about the 5th/6th yet (I'm pretty sure, but we'll see after I'm done selling off some lenses I don't need. I might buy a new lens to accompany the 4 I'm taking for sure). Anyway, as it is, no large tele lenses, but for the sake of numbers, count 100x100mm (3.9x3.9") as average. One gripped body. Flycam/glider I can disassemble and fit into.. see http://www.thinktankphoto.com/product-images/xlarge/Airport-Accelerator-2.jpg
that D700 with the bigger lens on the left? The stabilizers would need the same space as the d700 with the lens (possibly an inch more in length). I think I could fit them in so that they wouldn't require quite as much width as that camera+lens combo in the picture. Based on that, it would be a pretty tight fit if I got the airport accelerator, so I'm not sure if that's the right bag for me. It was one of the suggested bags.
"Irregularly shaped" bags get DQ'd as carry on luggage more often so I'd rather use a proper bag. The filters aren't important, they can be put in any bag in a pinch. I just mentioned them so nobody would assume they can recommend a bag that absolutely couldn't accommodate a bunch of filters anywhere. I mostly mentioned them along with the tablet in order to make it clear that bags with lots of pockets for small stuff are preferred and that pockets for filters would be nice too.
I'm "trying" to fit everything into one bag because usually the "other bag" is expected to be rather small, and I will probably want to put non-photo gear in there, so if my mentality is to fit everything in one bag right from the start, I think that will lead to a better bag choice in the end.