I prefer to play on grass 100% but the benefits of field turf are too great to choose preference. I just played 13 flag football games this past weekend on turf, and honestly you forget about it until you get a turf burn. Or if you stop to realize how it's 10 degrees hotter than walking on regular ground.
Now, when field turf is past its age, not maintained properly etc. and it gets slick, I refuse to play on it. If you need an example, head to Revolution Park in Charlotte and try to make a few cuts moving above half speed on that turf. Practically plastic/ice.