[RajatPawar]

There must have been a reason the developers picked PAWN for SA-MP. C++/Java/PHP and all have too much other stuff EXCEPT the stuff required for SA-MP, while PAWN - well basically if one learns PAWN for SA-MP, he is much likely to be better at it than trying to learn a huge language like C++ for just coding some game modes for SA-MP!
Basically, PAWN is easier!
Easier = less features than some other languages, but it atleast allows for 5000 scripters with unique ideas scripting unimaginable stuff than 200 who know the language.