Hope you won't mind, but I'd rather not quote from the original.
I've only had exposure to SuSe, Caldera, TurboLinux and Red Hat (which is my
current distro).
Red Hat does offer KDE, but GNOME is the default for X.
I'm not sure I understand your statement that SuSe is what Red Hat
should have been. I know: you mention that you think their distro
installs more easily, has fewer "growing pains" compared to Red Hat
per release, but this wasn't my experience (at least, with 5.2, I
believe); quite the contrary. It was not an easy installation, and
Yast presented an almost incomprehensible system to
me. Installation of packages after the install was also
flustering. And although I thought they may have had a more up-to-date
set of video drivers (I wondered if it was due to a more solid
relationship to the X-Free86 Project, but for the life of me, can't
recall what led me to that suspicion), I found nothing exemplary which
set them apart from the crowd.
I spent the least time with Caldera, so I can't comment at all,
really.
To me, honestly, I think it's like asking someone what flavor of
vanilla they prefer. I'm sorry if that sounds so simple, but I still
fall back to advice I'd seen on a Linux newsgroup a couple years ago
from a guru: try as many of 'em as you can get your hands on and stick
with the one you like the best. You don't have to break the bank;
heck, they're included in books, given away at expos, can be
downloaded off the 'Net or got from friends.
P