Everything non-Apple is. Apple's trackpad are great and have been for decades. I’ve done professional image editing on the go even with the tiny by today’s standards PowerBook G4s trackpads.
The real tragedy of our industry is that Apple got the basics right a few decades ago but seems determined to make their OS worse for pro user with every release. Yet no one else seems competent or willing to take on the challenge.
Compared to the thinkpad trackpad, it is light-years ahead. It is also more robust - functions with a little bit of dirt/oil/dirt/water. Get some oil on the thinkpad trackpad and you need to spend 10 mins wiping it away for it to work without driving you nuts.
Even hardcore thinkpad fans have grudgingly admitted to the superiority of the Macbook trackpad. Check the thinkpad forums to see their envy.