We need a metric for how programming languages suck. I suggest the AFB (Another F*ing Bug). The Suck factor (S) is calculated from the following formula:
S = (A + 2B + 3C) - M
Where:
A = Bugs encountered during the development cycle
B = Bugs introduced by implementing new features
C = Bugs only encountered years later after software has been in production
M = Combined cyclomatic complexity of the project
Naturally M would have to be weighted somehow. And the whole result divided by a spectacularly large number, considering how programmers from nearly every programming language are bad at respecting best practices.
The adopted terminology would be -- for two languages, A with AFB 12 and B with AFB 7 -- Language A sucks by a factor of 12 and B sucks by a factor of 7. Or, comparatively, A sucks almost 2 times more than B.
I bet languages like PHP don't actually suck that much and probably why they are so popular. Whereas languages like C and C++ would fail spectacularly on my (biased?) AFB metric.