Out of curiousity...
How are they different?
And why were they put into this game, explain the reference to humans in W3 please.
When it comes to Warcraft 3, humans were more of the melee "I'll slice you up old school!" units. Human units were Footmen, Knights and peasents. Humans were never ranged or magic users in WC 3 unless they were Paladins or Archmage (hero units). Magic and range units were supported by the elvan and dwarf races since elvan relied more on magic then humans and dwarves were able to take advantage of their mining and forging skills, moreso then humans. Add to the fact that gnomes supplied technology to the dwarves during the 2nd and 3rd war (gnomes never appeared during WC 3).
Anyways, dwarves were always better with a range weapon then any human (notice how humans cannot be hunters) since the heart and soul of human fighting is much like the orcs: face to face melee action. During the third war, dwarves were the range units. Anything that was ranged, they handled. This includes rifles, seige, air mech units and mortors. As to how the guns handled in WC 3, range weapons are slow but powerful once completely teched and are better used for damaging buildings and the such. When it comes to damaging softer units (aka anything that is not a mech or building), night elves win hands down. Focus fire bows can destroy units like crazy, especially once you get the archers to learn how to ride hippogryphs (Giant birds) to keep them away from ground units (archers are pathetic when it comes to HP/Def). Night elves can also outpace a dwarf riflemen in terms of speed so multiple NE archers can cause fast damage if they are not taken out quickly (which is easy to do, by the way)
I'm not sure if the same can be said about WoW but I guess we'll just have to wait till we find out which is better given certain situations.
Hope this info helps.
Edit: Forgot to add to the fact that WC 3 had 4 factions: The Undead, Humans (Humans, Elves, Dwarves), Orcs (Trolls, Orcs, Tauren) and Night Elves.
And to add on, yes, technology of high order does exist in WoW. The race that achieves the most tech wise would be the gnomes who created various items like the copters and mechs. They even helped make weapons along with their long time allies the dwarves who supply the metals they need to create such items. These items (as said before) were supplied to the humans during the wars. Edited, Sat Oct 2 10:48:24 2004 by Redmoonxl