normal - hell is fine you don't need to have good gear in those difficulties and ever level you get new gear and spell options
at level 60 there is more to do but it also takes longer to get better gear and the spell pool you have never increases at that point
how long it take noobs to get to level 60 now anyways
i think the drop rate for normal through hell should be buff by like 10 times this would make that part of the game a little more fun. maybe once you hit level 60 the drop rate goes back to normal so that hell does not become the best place to farm gold.