I got to buy a new PC. Please help me to choose whether to go for an AMD or an Intel?

It really is a debate and comes down to user preference, really would do a Google search for AMD vs Intel and see what links come up and look for comparisons

Hard to say one is better than other, again comes down to user preference, best thing is to find some comparison charts and see which one would suite your needs based on what type of computing you will be doing (gaming, general, multiimedia, etc... )