which one will you guys choose instead?

The extra mini is REALLY small... The rectangular mini (largest one) is most comparable to the WOC in terms of size. I did a recent "Triple Reveal and WOC/mini Comparison" so you can see what the two look like side by side. I also added a few more detailed comparison pics at the end of the thread.

Both look good for formal events but in my opinion the WOC looks dressier.
 
will it look v weird on 5'7" for the extra mini? any one with mod pic pls feel free to attach.

and also i am just wondering the one passport one bag policy in paris. If i am to buy a GST and i want to buy extra mini, will it be allow? is extra mini also counted as a bag? or a small leather goods? as i did read that one bag with 4 diff style of woc is possible but never see any related info about extra mini or mini
 
I prefer the woc. I feel since you can hide the chain completely inside and the bag is flatter it is possible to use it as a clutch for dressier occasions.

The extra mini is quite small IMO.