Thad Enouf said:I think the "sweet spot" is somewhere between 4 and 6 PCs, depending on player experience, game edition, classes, and level. Currently, I am the DM of three PCs and one NPC and it's about perfect for our play style in lower level adventuring.
Griffith Dragonlake said:The reason I find 3 players ideal is that it allows for a more intimate game. No player is out of the limelight for very long.