I've owned a PS3 and 360 for about the same amount of time. I've logged about four times as much hours on the PS3 than 360. Here's the score.
Permanent system failures that required me to buy a new system
Failures on system startup
There hasn't been a Sony system that froze a lot since PS1.
You sure XBox One won't have similar problems? I'll believe it when I see it.