If you have a certain outcome on one mob type and maturity, and want to use same set up
on another mob and have same outcome, that new mob needs to have exact same stats, imo.
To do a little analogy: If you are a carpenter and use 2" nails for a certain construction,
you can't use that nail on next construction if it requires 4" nails.
But you can use a 4" nail on first construction, just that it will be "overpowered" and far from
perfect.
I.e: use right stuff for specific target.
When it comes to "competition" in a area imo its due to we interact with same spawn control.
These spawn controllers are targets for peaks in loot system, system increase and decrease
values all over the map in a certain pattern and time.
Most probably is it that the one with optimal values (set ups, avatar progression, and so
on) who get best loot from that controller.
A area could have mobs from several controllers. These spawns are either per point or
per zone (just a guess though, but a zone could be a s***load of points, if they haven't managed
to control spawns "randomly" within a zone).
This is how a LA works too.
Now, some thoughts about this:
They could have several controllers in a certain area where one of them just handles one single
spawned mob, which is the extra high multiplier. Doubt it though.
I don't see max DPS and DPP as most important, since I do have several set ups that works
with the target, and they are for sure not fast and/or cheap to use, but they work.
In a way, I could agree that DPS and DPP are most important though, but rather *right*
value than highest possible.