definitely TMAX 400, from my favorite films in B&W this TMY coming as first for ISO 400 second as favorite after Acros 100 as general, i think it is the first film in 120 i started with too, and i tested it with 4 developers [TMAX, D-76, Ilfosol 3 and HC-110] and i always get great results, i printed one frame from TMY film in a darkroom of an institute i took a workshop at and the print came out amazingly incredible sharp and clean, and the tones are blowing mind, and i didn't use this film so much for long time and i am not an expert, so i can comfortably recommend TMY over TMAX 100 anytime.
I uploaded 5 images in my gallery here, as you can see all the images are from TMY, and i can't remember which developer but i think that time the only developers i had were TMAX and Ilfosol 3, i have much more images from TMY, but i think what i posted are the best so far.