I wonder if you put three Altmer, Dunmer, Orsimer and Bosmer in a room... Which of these will get along best with one-another?
Let's say that it's about forming alliances...

PS! the quantity of each of them doesn't really matter... I just wanted to make a pun-title!

Let's see...

Altmer - would start conspiring with the Bosmer, while sneering at everyone else
Bosmer - would conspire with the Altmer, while reading the book "12 delicious Merrish recipes", thus making everyone else in the room highly uncomfortable
Dunmer - would secretly sharpen a knife stolen from the Bosmer, looking for the best parts to stab it
Orsimer - would start hogging all the furniture in the room and pile them up in a corner, while hiding under them
Maormer - would look for a bathtub, then try to murder the Altmer
Falmer - "you gotta try these shrooms, maaaan..."
Dwemer - Mzrumgflgpthcthanzg
Ayleid - would try to kidnap the other Mer
Aldmer - *teary eyes* "They grow up so fast..."
Left-handed Elves - "Who the hell are these guys?"

I got only ten...

"Ten Little Mer?"