Here are 4 best Oses to try.
5. OSX Jaguar
This OS is great for PPC computers.
4.Mandriva
If you have a Wintel PC and you do not like Open Suse,try this.
3:Open Suse
If you do not like Mandriva,try this.
2:Edubuntu
I put at #2 because it is for all ages.Great for parents of children and teens.
1.Zorin OS
It is easy to use although it is not for all ages.