TheWho wrote:...drops, Unformed Land, /players x
Under Concepts/"/players x" there's a handy little table with some information on /players x and the exact differences in NoDrop chances. NoDrop reduction increases the overall loot from just about everything, while MagicFind has no effect on things like runes (because they only have one quality that quality can't be increased).
What the docs don't mention (and they probably should, in fewer words) is /players x only simulates unpartied players, which gives monsters the full difficulty increased but only grants a loot increase equal to half the extra players, rounded down. Your character counts as a full player, so /players 3 will add two more half-players (and loot will drop like there's two whole players). /players 7 adds six half-players, for a total of four (three plus your character) and that's as high as you can get it to go, which roughly triples the chance lowly peons will drop something. Even-numbered /pX increases difficulty over the previous number, but doesn't give more loot because of rounding down (/p6 gives your character plus five half-characters for 3.5, rounded down to the same total as /p5).
Keep in mind that some builds suffer dramatically on high /pX, like my 98% crush knifechucker. Crushing blow's damage doesn't scale with increased monster health, and even if you land hundreds of crushes per second killspeed may drop enough to make it worse for farming.