The TI offerings look geared towards low power and are kind of anemic on the high end with up to only 32kB ram and 256kB flash. ST/NXP/Atmel have parts with over four times that (and the ST eval board is also only $15). I know you can do a lot with a little (I used to design with pic16), but for higher level languages without runtimes optimized for embedded (eg rust), I'd want all the room I could get.