Ubuntu I've always found to be better for newbies. Also I've found that since Ubuntu is just so popular, it's a lot easier to get support for any problems you might face. A lot of developers/companies also see Linux as being only Ubuntu, and develop stuff to make sure that it works easily on Ubuntu (as opposed to taking more effort with a different distro).
I'm going to say that openSUSE may be the better option than Ubuntu or Fedora. I've used all three. The Yast management tool in openSUSE makes it simpler to handle than the others and puts things together more logically.
For a spare PC, openSUSE may be the last operating system you'll ever need to install on it.
It depends on what you're gonna use it for. Ubuntu is great for day-to-day use because there are many applications that are developed specifically for Ubuntu, like Boxee, Truecrypt, etc. Fedora is used more in corporate or educational environments where there is specialty support (my university uses Fedora 9). The great thing is that you can download both, burn them to a CD or DVD and try them by running it off the DVD without installing it, but I would lean towards Ubuntu.
Ubuntu because it has both a very stable Debian based package manager and both a lot of official and community contributed documentation.
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.