Which linux distro is the stables/strongest for SERVERS

I need to set up several servers, some for my home business, and some
for my work. I do not need very many features like the latest
Bluetooth gizmos. I just want a system that does not crash a lot,
upgrades cleanly, has long term support, and uses system resources
nicely.

After recent disappointments with Fedora 8, I am looking elsewhere. I
kind of liked Ubuntu and am wondering if anyone tried Debian or Ubuntu
servers.

Have you found a rock solid, easy to upgrade linux server distro?

I do not want much, all I need is kernel, filesystems, ssh, LAMP stack
and that's all. (where P stands for Perl)

thanks
.