I think that tabular grain films (Tmax, Delta) tend to be more finicky than more traditional emulsions when it comes to exposure and development. A little goof up, and the contrast went over the top; at least for me and Tmax 400. For a while Tmax 100 was fairly predictable, but like I said, I've been told it's different now.
We should also discuss the flipside of this topic (some have been). What's your least favorite BW film?
I tried a dozen rolls of Arista.EDU label film (ISO 200, 120 size). It's supposed to be Forte. Not only did it curl like crazy, but it's stinky! It was a little grainier than I might expect from ISO 200, but I liked the look. Unfortunately the excessive curling makes it such a pain in the butt in the darkroom or scanner, that I won;t use it again.
I prefer pushing almost any BW film rather than use Tmax3200p. I used to push Tmax 100 to 400, rather than use Tmax 400. I had better results that way than shooting Tmax 400 at 400.