I've tried working a little bit with both now, and decided to give some of my opinions. Plus, I would like to see other people's opinions.
First Impressions of Mandrake 9.0 RC2:
- The install seems faster than it was with the other Beta versions. And no problems encountered.
- The choices of packages is great. Almost everything you want is there.
- Gnome 2 is wonderful here. I love the look and speed.
- XFree86 4.2.1 is really working well. I haven't had any X11 problems yet.
First Impressions of RedHat Null:
- Install seemed to crawl.
- Not as many package options as Mandrake. More "buisness" suited than Mandrake.
- What the hell is up with Gnome 2 here? They just took Gnome and made a KDE clone with it. Not good.
- Xfree86 is only 4.2.0, but it is stable and fast.
As you can see, I personally think that Mandrake has done a MUCH better job.