Apache is like Microsoft Word. It has a million options but you only need six. NGINX does those six things, and it does five of them 50 times faster than Apache. Chris Lea
Hey i would really chose Nginx but i dont think it woukd make a major diff between whatever you pick and considering you dont get high trafic to your site , check your site for combatiblility for all web browsers becuase when i went on your site it was disorented.
From what i can see you have Apache servers dont you?