Question: I have decided to switch from Window to Linux.
Should I use Ubuntu or Kubuntu?
Or there are other handy alternatives?
I'm a LAMP based developer.
Any help would be appreciated.

Answer: 
I enjoyed reading this: [Ubuntu VS Kubuntu](http://www.latest-technews.com/kubuntu-vs-ubuntu-or-ubuntu-kubuntu/)

In the end I think the beauty of Linux is that *you don't have to pay* for it. 

So, why not try both? There are **Live CD** versions of both systems available for download!
I think both have a live cd, try them out and figure out which one you like better. There are tons and tons of choices, which one works for you will be 100% up to you. Basically you are asking about gnome vs kde, which is a basically a religious war :)