The best way to do twist-like bridge? I just wonder if there are any ideal solutions to do this without using lattice deform, etc. Thanks!

Update:
I found I've been using a more regular and simple thing for illustration. Now what I really mean can be seen in the following image.

(This is quite puzzling me when using any current way I suppose, I mean, keep original loops un-twisted. but to twist the bridge.)
Added twist offset option to the bridge tool r58609 (will be available in 2.69 or any recent build).