Which is the best among Visual Prolog, SWI-Prolog, and others?

Question

I have searched the Internet and stackoverflow.com, but got nothing.

Who can give me a comparison between various Prolog compilers/IDEs such as Visual Prolog and SWI-Pro

Answer 1

There is a performance based analysis of rule engines here: http://sunysb.academia.edu/PaulFodor/Papers/349245/Openrulebench_An_Analysis_of_the_Performance_of_Rule_Engines

Im many tests, YAP seems to be in general the faster one, but XSB is not bad at all. If you are looking for inter-language communication (with Java, C, or others), database access, or tabling (these were my requirements), XSB has an impressive amount of sophisticated libraries. However, I found YAP easier to use (until the present, I am just starting giving XSB a chance :).