Seems pretty evenly divided so far! No wonder I can't decide.
On colour, I like the bronze of 1 but also the silver of 2 and 3 - though 2 colour is nicer than 3 IMO because a subtler, less 'shiny' silver.
I've tried on all 3 and all seem very comfortable in the shop.
Have also had an earlier pair of Fitflop sandals similar to 1 which were comfortable.
Any more views?