I flew on Spirit recently and noticed before takeoff in the little speech the flight attendants make they mention their “all Airbus fleet”, which honestly made me feel better. I don’t want to fly on a Boeing at this point, as I fly so seldom anyway and this has just devastated my opinion of them.
There has been a slow-simmering pop-hypothesis, fueled by a number of accidents such as AF 447, that Airbus' approach to fly-by-wire controls is less intuitive than Boeing's in a crisis. As far as I know, there is no real evidence for this making Airbus planes less safe, but until the 737 Max crashes, I think there was, if anything, a bias against Airbus.
I couldn't find any data on the number of journeys per year. The statistic is useless as an indicator of safety as it isn't normalized to either a unit of distance or journey.