ArmoredMonster - Each of those Kaby Lake CPUs are desirable in terms of mobile computing - offering considerable multicore horsepower coupled with low TDP/ battery drain.
However, don't expect that the integrated GPU on these processors will be able to run T:ANE smoothly. As others have pointed out above, these CPUs need to be matched up with a decent separate GPU to provide smooth framerate performance in Trainz.
Top choice would be the 3.10 to 4.10Ghz i7-7920HQ that you haven't mentioned above, with its higher base and turbo frequencies.