I enjoyed my last Thinkpad (t40) a lot. Still have and use it after 6 years. But especially with linux, battery life wasn't very good (now the battery is completely dead of course). The fan never stopped.
To answer the question of the OP: yes, it is totally worth to learn Mac OS. First, the effort is small. Second, you will save a lot of admin time. Third, backup is easy, reliable and bootable. This alone recommends Macs as developer notebooks.