Oh pretty much all of them have better trackpad experience than Apple drivers on Windows provide. Under OS X the trackpad is stellar, but on Windows the drivers are just awful.
The multiple finger related functionality doesn't work that well under Windows, but simply moving the cursor feels a lot better than most Windows trackpads I've used.
You're completely correct, and it's unfortunate that you're being downvoted. I'm guessing this is due to idiots who have never used Windows on a Mac laptop and think they know more than they do.
As a universal, parent's claim is patently false. I have an Lenovo X1 Carbon that is a testament to how crappy a trackpad can get. I have had a few PC laptops in the last 5 years (HP, Lenovo) but have never found one with an adequate trackpad. So, if could you please tell me which laptop I should try? This is quite easy to test.
I've heard good things about the new XPS trackpad, but haven't been able to try one in the wild yet.
Your issue is that you're misunderstanding the parent comment's claim. Izacus didn't claim that Windows laptop trackpads weren't bad -- the only claim made was that Apple trackpad drivers were worse. I've used a few friends' windows laptops, and while their trackpads certainly weren't good or perhaps even adequate (to borrow your term), they were without a doubt better than the Apple-laptop-running-windows combination, which I would classify as far below "adequate".
I have an X1 to test side by side with an rMBP running windows, and the X1 is categorically worse. Heck, I've tried many PC laptops (we have access to many at work) and haven't found anything that was as usable as an rMBP.
So, just name one laptop whose trackpad is better than an rMBP, I'll go try it side by side.
