Tri-X is a 1957 Chevy. (Classic, dependable, beautiful.)(posted 8762 days ago)T-Max 400 is a 1986 Taurus. (Catchy new very-hyped design, but only slightly better mileage, and a definitely few bugs to be worked out in future models that aren't immediately obvious.)
Black&White+ is any current smaller SUV. (Superficially appears to be a real heavy-duty truck, but really isn't - reasonably dependable, can definitely be fun and will get you around, but eats more gas than you might think, and it's a totally new model, so you really don't know how it will stand up to the years.)
Personally, I have made zillions of great shots on Tri-X, and was very underwhelmed with T-Max 400 (while SLIGHTLY sharper than Tri-X, I found it equally grainy, with far too much contrast for my taste), and have no personal experience with the chromogenics, 'cause I have a standing darkroom and fresh D-76 I can use whenever I need... But if YOU aren't developing the film yourself (or having a trusted friend or pro lab you absolutely trust do it), Black&White+ may be the best choice for YOU...
There's nothing wrong with new technology, but is anybody going to be holding nationwide conventions for Nissan Pathfinders in 40 years?!?