Preferred bag style for intensive 30 minutes

Assuming you will have to get the maximum out of 30 minutes and you can't entirely predict which lenses will be needed. Weather might change and you don't know how wide the crowd will spread.

You carry two bodies with your best bet 2 lenses.

What's your choice to carry more lenses.

I use a DIY stealth shoulder bag to carry extra lenses. I love it.

16-35 on one body, 70-200 on the other, 1.4x teleconverter in a pocket, battery in another pocket
Fast and light ! No need for a bag !

(actually, I would have a bag, it it would have a bottle of water, rain jacket and stuff in it) typically I use a little crumpler I bought second hand - don't know what model it is, or a Lowepro backpack if I need to take a laptop too)

Domke F2 When its on your shoulder its a stable platform to work out of

Situation dependent!

I would put the two most likely lenses that I would need on the two bodies. Then I would wear a Lowpro padded belt with lens cases attached, which carry 2 (maybe 3, if I am really uncertain) additional lenses.

Oh. This was supposed to be a poll What happened?

Anyway, I now like an extra belt with two lens cases, one of them has a side pouch for 1 or 2 batteries.

I have a jansport messenger with an insert. In your scenario I would place them in use order. Most used on the left, least used on the right. I carry the bag off my right hip.