Personally, as a resident of Wyndham, I prefer the interchange at Gayton Road because it would extend the multi-use pedestrian cycle path on Gayton road all the way to the mall (If you look in the design they removed one of the center lanes to add a 12 ft wide pavement). So if you want good walk/bike infrastructure, do option 3. I get that Diverging Diamonds aren't really pedestrian friendly, I don't like them either, but I think a good interchange there is necessary, and there's not really a lot of space.