Which is best for server side programming, python, JSP, ASP.Net, PHP?!

Answer 1

I tried Java (with Spring framework + Hibernate + JSP) and PHP (with Symfony framework + Doctrine + Twig). And now I can tell that PHP is much better, because it is a lot faster and simpler.

Answer 2

The "best" is the one you know best. I always go for PHP (with Frameworks). Some other guys say ASP.NET is great or Python is the best. Just choose one and stick to it. You can do the same things with any of the mentioned, you just have to learn it.
P.S. PHP (with Laravel) is theee beest ;)