Touchpads of Thinkpads is OK, although a little buggy (they insist in breaking your middle button being the middle click, unless you restore some registry key to historical values, but then this now unsupported function seems to degrade with time and mandatory driver updates...) and using remote desktop sometimes break two finger scrolling for 5 minutes... (I would really want to know what happens technically, this seems only a truly horrible design would yield that behavior...)
I just tested palm rejection (I don't need it 99.99% of the time) and out of 2 tries it failed once and produced zooms commands.
So yeah, it's probably worse than a mac, but stays usable enough for me.
(Warning: I'm more specifically talking about a T530, some Thinkpad like T440/T540 have extremely terrible touchpads, and I don't now much about the very last models)
For the recent laptops maybe precision touchpads are good, but IIRC sadly not every vendor are shipping in that mode.
On my side I'm extremely annoyed by the current tendency of most 15.6" to have a keyboard with a numeric keypad. That shifts your default position to the left, which is not ok for my taste on a 15.6" (would be ok on a 17"). When looking at powerful recent laptops around 15", I only found the MBP (but I don't like the last one for various reasons), the XPS15 / Precision 5510 and the HP ZBook Studio G3. But the last one seems to have heat problems, and XPS15 have had QC issues. OTOH at least with PC you still sometimes have the option for matte screens.
So yeah choosing a laptop is kind of difficult, especially if you have criteria on lots of point. I doubt I'll ever get the one I really want (ex: I found 16:9 aspect ratio idiotic, but I don't like glossy screens...). I can live with my T530 for a few more years, given it has 16GB of RAM and a SSD.