Should I use Javascript SDK or PHP SDK for facebook connect in website?

You've already got a strong analysis of the differences between the languages already. Beyond that its really a preference and its true there is nothing holding you from using both.

The latest (3.11) build of the PHP SDK includes an example of how you can use both the PHP SDK and the Javascript SDK together. To summarise, they communicate via a cookie.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.