I have to admit that I like the 12point bolt head ..but :
you need really design the application to it = need enough acess to be able to use a socket....all conventional open spanners ...no ways to use those..and you need top class tools because of the reduced head size as well...
Inside hex and especiallycombined with countersunk head very likely to be misused by spannermans of this world... at least the old trick with a torx bit hammered into the rounded off inside hex will usually do the trick to crack them open....
I´m a definite fan of torx .