While I have never had it happen, I've seen it happen in games Iv'e run. In many games, it's not a problem, as they will typically grow apart in game.Have you guys ever been in this situation? You roll up a character with a fairly standard archetype -- big dumb guy with greatsword; snarky necromancer; etc. -- only to find that another player is horning in on the same conceptual space. Is this a "stop copying me" problem, or do you feel like there's enough room in the campaign for similar character types? And if the players in questions do feel like, "I called shotgun on seductive bard," how did you resolve it?
Comic for illustrative purposes.
Ever wonder what it would be like to be a
Wizard in an adventuring party with a
20 intelligence and everyone else has an 8 intelligence.
My point is that with the standard array I see the same attribute distribution being used almost everything for a given class.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.