[Synchro909]

I have both. In the cars with a cable shift, I like the way I can change from high second to low third so easily. In one of the cars with the stick, I also have the synchro gearbox. With that setup, the same change is even easier - I pull both levers back at the same time by hooking my fingers around both sticks. I don't know how feasable that would be in your LHD cars.
My order of preference over the four cars would be:
1. Synchro gearbox and stick change
2. Standard gearbox with cable change (X2)
3. Standard gearbox with stick shift.

So I guess it boils down to what you like. Maybe you would do well to find someone with a cable shift fitted and ask if you can sit in th ecar and try it. If you are up to a looong walk and an even longer swim, you could try mine!