1: Train Sim World: CSX Heavy Haul 2: Train Sim World: Founder's Edition 3: Train Sim World 4: Train Sim World 2020 5: Train Sim World 2 6: (Removed due to being a single route) 7: Train Sim World 3 https://www.youtube.com/watch?v=PyRNvgE2wbA&ab_channel=TrainSimWorld This should be all the main ones (I'm not adding individual route trailers as I can't be bothered)
Of the ones that you have listed, the best one for me would be number 7 because the CGI looks amazing. Then it goes 3 4 6 1 2 5 mainly because of the music - I tend to dislike trailers that sound more like the CalTrain trailer (with exceptions) and tend to prefer trailers that sound more like the Tees Valley trailers. just my opinion though
for me its 4 3 1 2 7 5 I do prefer the older one mainly due to the soundtracks as I personly find the new soundtracks can be cringy