This is not meant to be a "which is better" post. I have a laptop that is ubuntu only, after it won a long hard battle with vista. My desktop had vista and ubuntu and was used mainly for games. After only having the computer for about 4 or 5 months, vista died. I could not even get it to boot. I had to use an ubuntu live cd and transfer what I could to the external hard drive. I am anticipating a long, hard battle with HP to try to get an install disk for vista, so I am going linux only for a while. I used Mepis for about year and it was my intro to linux. However, at that time I knew nothing at all about linux in general.
Now I have progressed to knowing slightly more than nothing about linux and I am considering the new mepis 7 for the desktop. What differences should I expect (I can't remember too much about mepis, except that they also have a superb, though smaller, forum and community, and that I really liked amarok at the time)? I used mepis exclusively for about a year and it is what made me decide that windows wasn't that great after all. is the "sudo" command the same? what is "su"? I imagine I will be putting ubuntu on there also, but I just wanted everyones take on what challenges will be different.