Larry, it's a very tough choice and no one router has everything perfect. All have their strong points as well as weaknesses. Two of the routers are fixed base while the rest are plunge. Is price an issue? How is the router to be used? Free hand, mounted or ski jig? Dust collection? Using the routers with after market accessories can change the outcome of the ratings. IE.. both PC's and the Milwaukee have no dust collection accessories. Mount them on a Betterley Stacc-Vac or in a table with good dust collection and it becomes a non-issue. How you will use the router and how you prefer the controls to operate is what you should make your choice on. They all work. This may sound like I am avoiding answering but I am not.
Based on my needs I would rate the Bosch 1619EVS best for all round use. It has the best turret design, good dust collection accessories, the deepest plunge cut and the largest base opening. It is the only router with a plunge spring defeat feature that lets you change from table to hand held routing by popping the router out of the table and releasing the lever lock. (Mounting plates work fine as a base for free hand routing)
The Makita RP2301FC would be a close second. Harry posted his solution for the poor turret design.
For free hand use I would choose the Festool OF2200EB as my first choice; the PC 7538 and then the Bosch 1619EVS.
The Triton TRA-001 was designed for table mounted routing; drop it in the table, hook up the dust collection hose and go.
The Milwaukee 5625-20 has a rapid height adjust feature that is great for fixed base routing, it works well in a table or mounted in a lift.
The PC 7518 has long been the king of the router lift but there is a new challenger: the Portamate. More on this soon.
The DeWalt 625 is the world's top choice for use with the Woodrat.
Last and by no means least is the Hitachi M12VE; this is the value leader with it's low cost and good all around performance.
Now get your passport and come rate them for yourself.