In an ideal world, I would
In an ideal world, I would run at least 15 times per week. But I have a family and a job, so I run when I can. Plus, I sometimes don't like the cold, so I use that an excuse to stay inside during Jan and Feb.
But the key is to be able to monitor your intensity level. If you are going to run frequently, I think you need to dial down intensity. I see a lot of people who run and look like they are ready to keel over and die in the middle of their run. I like to keep my intensity at a level where I'm actually enjoying the run and feel strong throughout and could carry on a decent conversation without any extra effort.
It's good to have an intense effort once or twice a week, but for me at least, most running should be at a relaxed effort.