I would say, if I had to squeeze them both into one workout, I'd probably mix it up. Start with 15 minutes of cardio to get all warm and loose, then do the weights, followed by the remainder of my cardio workout. Or do circuit training with the cardio mixed in. I'm no expert.

My usual routine is to do my strength training early in the AM. And then do my cardio workout later in the day or that night.