Consider which of those cars you mentioned above require premium fuel. I know the ST doesn't need it but runs optimally on higher octane, that can affect your operating costs yearly on whichever you choose.
Now, with that said, Your list is one that I'd say is after my own heart. lol. I LOVE the styling, power, MPG of the ST but I've had a lot of bad experiences already with my 2012 Ti. Its been in the shop for damn near every TSB Ford has and this is the first time I've been back to owning a Ford in a lot of years. Previous vehicles were imports. So it scares me to start over again with another FORD and have to deal with those possible quality issues again. I would personally seriously consider the VW TDI. I have a friend who has one and the fit and finish, inside and out is top notch.
2012 FF Ti HB Platinum White Tricoat, Built 12/11, 401A + Parking Technology Package and MFT w/NAV at 3.5.1