Voadam
Legend
For years I played in a 1e campaign where 1st level PCs adventured alongside 36th level characters. And I found it awesome. That game was a lot more roleplay and politics and exploration than combat though. Most of the time AC and hp were completely irrelevant.
I've also played in games where power discrepancies really sucked the fun out of the game.
It can depend a lot on the game and the group.
As an ideal I love the concept of PCs being balanced for equal power in combat, each doing different things but contributing and participating meaningfully. This way you can have lots of combat and not have the problems of the unbalanced group. Generally the good things from an unbalanced game can happen in a balanced one just as well.
I've also played in games where power discrepancies really sucked the fun out of the game.
It can depend a lot on the game and the group.
As an ideal I love the concept of PCs being balanced for equal power in combat, each doing different things but contributing and participating meaningfully. This way you can have lots of combat and not have the problems of the unbalanced group. Generally the good things from an unbalanced game can happen in a balanced one just as well.