Mark Hope
Adventurer
My current group is 5 (it was 3, but we just recruited 2 new players). I also have a Dark Ages WoD game that has 3 players - it makes for a very intense roleplaying experience. 3 to 6 is my happy medium.
The most I ever DMed for was a group of 12. I was going hell-for-leather all the way through (it was a huge group exploring the ruins of Myth Drannor), but the players commented that they found the session a little slow. Even if you cycle as rapidly as you can between players in a group that size, each player will nevertheless have 5-10 minutes between each turn where they are left to their own devices. So even though I felt that I was able to handle a group of that size, the simple fact that each player spent a good few minutes deprived of my attention adds up to an unacceptable amount of time for each player over the course of an evening, imho. Never again.
The most I ever DMed for was a group of 12. I was going hell-for-leather all the way through (it was a huge group exploring the ruins of Myth Drannor), but the players commented that they found the session a little slow. Even if you cycle as rapidly as you can between players in a group that size, each player will nevertheless have 5-10 minutes between each turn where they are left to their own devices. So even though I felt that I was able to handle a group of that size, the simple fact that each player spent a good few minutes deprived of my attention adds up to an unacceptable amount of time for each player over the course of an evening, imho. Never again.