In the early days of dark basic there was heated tension between the two groups.
we had lots of fights over this vs that.
unfortunately we used to get trolls from the blitz side and they would cause trouble.
nowadays TGCs policy is to lock threads of this nature.
if you want, both packages have trial versions and developer forums.
check them both out by installing the free versions.
Darkbasic has made leaps and bounds since those days and clearly out shined blitz from a technology level in regards to keeping up to date with direct x.
all we can suggest to you is to try the free versions and base your opinion on your preferred coding style and requirements from your language.
thread locked, not your fault, but you know now its not feasible to discuss this while there is a holden vs ford mentality between the two packages.