I understand the usage of all the various pedals - I did try other types and realized they are not for me or my riding style. I just replaced the pedals on my commuting bicycle with Alloy 'Platform' type (previous was some sort of resin which I managed to crack badly). The new have a nice grip, and since I tend to wear either 'Converse style' tennis shoes or work boots when I ride - I need a pedal that grips well.

On a side note - clip type pedals that require a 'SPD' shoe are really not for me - though several locals that I know use them and can have foot on ground just as quick as I can with my platform pedals. So on the OP question - I don't either being safer, nor do I see either being unsafe.