Originally Posted by
Hoeth
While considering that things like insertion points, lever length, pennation angle, fiber density, etc, affect muscle force output, a bigger muscle is a stronger muscle, so the "strongest" would likely be a function of total muscle size. For the playable races the order would likely be
Tauren > Draenei = Orc > troll > worgen = night elf > pandaren > dwarf > human > Nancy-boy elves > goblin > gnome
Forsaken are difficult since they are animated by magical forces and their decayed sinews alone would clearly be functioning suboptimally
Of the non-playable races it would like be (discarding non-senient species...not even sure if Magnataur are sentient)
Dragon > Gronn > Magnataur > Ogronn > Ogre > Vrykul > everything else