The laptop i use the most frequent is my workpc. It's currently 2 years old and i get a new one every 4 years....
Runs windows 7 pro, i5, 8 Gb ram, 256 Gb SSD
At home, i use an 7 or 8 years old laptop, it's still 32 bit, 5400 rpm hd. I've installed openSuse on it, since this distro still builds their binaries for both 32 and 64 bit at the same time, so i get regular updates.
When i need some more power, i use my wife's laptop, it's also an i5 with SSD, but it only has 2 Gb ram. It runs debian.