I hate Ubuntu. But not because of itself. OS is actually really good and one of most widely used distros which helps support, but the Gnome interface they are using is so horrible to use and wastes so much screen estate I puke in my mouth every time I see or use it.
Good alternative is Linux Mint with its Cinnamon desktop which is very minimalistic and usable. But I prefer Kubuntu even more. Kubuntu uses same core as Ubuntu, but has KDE desktop on top. Some don't like it, but it feels more familiar and just more smart by design than weird, clumsy and wasteful Gnome with its moronic empty statusbar on top and big app launcher bar on side (or wherever you put it).
So, Kubuntu has all the perks of Ubuntu, but with better desktop interface. Give Kubuntu a try and you'll see how much better it is.