wrong site? seriously just google warcraft forums and ask there. in fact they've probably answerred it for someone else. You'll probably get me reply there lol.
WC3 is all about what level you play at anyway and what you like to play.
For example, i specialise in tower rushing and oddball strats.
Standard orc tower rush. (Not recommended versus undead, fairly poor versus human, great versus orc/elf)4x peons to gold, 1x peon to altar, build peon (i do it in this order)
when peon is ~70% complete, select a peon and make a burrow (this is the timing so that altar and burrow finish same time)
First peon out to gold,
next peon out to make barracks
next out to wood
at 40 wood build burrow
at 30 wood build vodoo lounge
hero: Far seer
Go creep, if versus elf i would harass. The aim against elf will be to use their moon wells mana up.
In fact, watch a replay for the rest. i suppose i could get off my ass and produce a few if interested.
I also beat noobs in amusing ways, as shown here:
http://www.youtube.com/watch?v=wrvb2DjV1Yg&list=PL595B4752EA471E8C&index=1 (audio commentated by downwhere, i'm Bigheaded[ones])
This build is only useful for beating absolute noobs. to play against absolute noobs, have an account with 0 wins 0 losses, play 10 games and LEAVE them all. now go play, you will usually be against a player with the brains the size of half a peanut.