Biggles - Very correct that statistics can be misleading, when comparing the A320 and 737 you would have to discount the 737 100-200 models as they were effectively a different era. That would leave the following stats;
A320/319/321 35 million flights and rate of loss of 0.37 per million flights (approx. 1 every 3 million flights)
737-300 through 900 78 million flights at a rate of 0.42 per million flights (approx. 1 every 2.5 million flights)
That is the statistics, however when you look at the accident reports the A320 almost entirely suffers from CFIT or some other factor which would have occured irrellevent of aircraft type, more related to poor training or operational procedure. The 737 even up to the late models still has strange and re-occuring accidents more related to type and mechanical failure, as well as the obligatory CFITs and stuff ups.
Based on air disasters stats we should all fly on the SAAB!