I am loving Linux Mint. I started using Linux in 1999 – RedHat, SuSE… then came Ubuntu. I loved Ubuntu but only till the introduction of Unity interface. I made a reluctant switch to Linux Mint last year. I am now using Linux Mint 15. Linux, for me, has never been more elegant. I love the fonts, windows, colours and transitions on Linux Mint. I have started recommending it to my friends too.
If you are a beginner and are having hard time choosing between Mint and Ubuntu, I would say, go for Ubuntu. You will not regret it – installation is easy and the use is much more straightforward than Ubuntu!