Check out CentOS vs. Ubuntu for a similar discussion.
It comes down to what you like more, if you are used to using Ubuntu switching to CentOS or another red hat based distro wont really make any noticeable improvement.
I've worked with Ubuntu/Debian systems at work and Fedora/CentOS systems at school and my totally biased and jaded opinion is that the latter too are horrible. I've always found that apt-get was much better than yum for example.
There are a lot of things that while making no real difference can be annoying, like typing /etc/apach, pressing tab and nothing happening because its /etc/httpd instead. This may not seem like a lot but it can get irritating quickly if you are used to certain things.
All that being said however all of that is just my opinion, if you have the free time give it a try, you may end up liking it a lot more.