Writing this from my Debian system, it's a great distro that has been excellent to me as a daily driver. I switched to Debian 6 after Ubuntu went way downhill and haven't had cause to regret it. I like Debian's measured pragmatism with ideology, how it's a distro of free software by default but it also makes it easy to install non-free software or firmware blobs. I like Debian's package guidelines, I like dpkg, I lik…
You're not trying hard enough ;-)
I have Debian on an old MacBook Pro and had it on an even older iMac, and I've had a few problems over the years. Always with proprietary drivers - WiFi, graphics, webcams, etc. - Apple really don't want people using free software on their hardware. There's always been a fix, but there have been a few stressful moments and hoops to jump through.
But it's definitely my favorite distro, and I run it everywhere I can. Pretty much always "just works" anywhere but Apple.