The thread is about Virgin selecting the 737 Max, so it stands to reason they decided that over the only other option the A320 neo.
EW73s comments are flawed by the statistical and historical data on the 737 vs A320 argument. The A320 runs at a slightly lower hull loss rate than the 737Ng series and if the -500 series is included (the A320 was introduced against the -300 to -500 model) the 737 moves further behind.
Since 2005 both types have had about the same number of fatal events and numerous hull losses. Both types have suffered from a great number of runway overuns and CFITs in poor weather. In this time 2 possibly 3 737Ng were lost in situations where the main conclusion is crew misshandling/loss of awareness of aircraft state, 1 A320 was lost for similar reason. It could be argued better flight deck design could have improved the crews performance in these scenarios, or better training would have acheived the same. All the other accidents had little to do with cockpit interface/ease of use or aircraft type and more poor crew decisions to land in storms, snow or do things way outside of the rules and normal procedures.
The old arguments of Airbus vs Boeing safety died years ago in a real sense, both provide a viable safe product. Choose the one that does the job for the budget and market.