I see that many achievements require leveling multiple characters to level 60leveling multiple characters to level 60, and I see from the full list that play on multiple difficulties is also necessary. Suffice it to say, most (probably including me) will never complete all of the achievements. Even still, I am interested in the most efficient strategy to acquire all achievements.
Aside from the "character leveling" achievements I believe the analysis will benefit all of the lesser achievement whores (like myself).