As Protoss, I like to go with a metric asslood of Archons, a bunch of dragoons, and a few Dark Templars to back them up and wipe out anyone too stupid to have detectors nearby.
As Zerg, I like to go with mass Zerglings backed up by one or two Ultralisks by ground, and by air, lotsa Guardians and Mutalisks, and maybe a Devouruer or two. I use Scougres and Lurkers for parameter defense, usualy with an overlord nearby to detect.
I never use Terran.
Archons? Helloooo EMP…
As a Protoss, I generally harass you often enough that you can’t get any higher level units, but my harassment squad usually takes a bit of time to get ready. To begin with, I generally just get a bunch of zealots to fend off attacks, and beef myself up.
It’s 6 zealots, 4 dragoons and 2 dark templar, so if you rush, you may get me, but I’ve usually got a nice defensive matrix to back me up.
Protoss
vs. Protoss: Dragoons, Dark Templar, Reavers
vs. Zerg: High Templar, Reavers, Corsairs
vs. Terran: Dragoons, Zealots, Reavers
Terran
vs. Protoss: Marines, Medics, Tanks, Science Vessels
vs. Terran: Marines, Goliaths, Tanks, Wraiths
vs. Zerg: Marines, Medics, Tanks, Valkyries
Zerg
vs. Protoss: Hydralisks, Lurkers, Ultralisks
vs. Terran: Hydralisks, Lurkers, Guardians
vs. Zerg: Zerglings, Hydraslisks, Lurkers
Protoss: Many sided attack. Scouts from the side, zealots 'goons and DTs from the front, and Reaver drops from behind.
Terran: vs Zerg, a little bit from column a, a little bit from column b, c, d, e, f, g, and a little everthing else. Vs everything else: Nukedy nuke nuke with some sort of alternate strike force that won’t win, just a diversion
Zerg: small attack, retreat to base and get them to follow. Unburrow 50 hydras in their face. Kill their army then head in for the win.
Gushing Wind Tactic. All-Or-Nothing Terran Blitz.
If you’re playing a team game or a 1 vs 1 game then just swarm him with protoss, build as many zealots as you can as fast as you can, don’t bother with upgrading just yet, just build more gateways (up to 5) and crank out zealots, if your enemy is teching for anything second tier he’s as good as dead. PLus there’s just something amusing about attacking a zerg player with twice his numbers early on, they just don’t expect it.
Protoss: lots of arbiters and stealth tactics.
Somethings I do: get some 10 templars to cast hallucination in an archon, then send hallucinations and all my army against the enemy base, hallucinations on the front. By the time they’ve got rid of all hallucinations I’ve already wroke some big havoc and most of my soldiers are still intact.
Also, in Brood wars, I always have a dark archon to sneak into the enemy base, convert a SCV or drone and teleport the alien peon into my base with an arbiter. I play with more than one race this way (they don’t share resources, my pilons are nothing for my soldiers of other races so I have to build depts and overlords as well)
Zerg: Mass Zerglings, upgraded speed and attack, damage and carapace, with 24 Ultras. My teammates get air. 
Terran: Wraiths.
'toss: DT’s, DA’s, Scouts.
I mostly play with only Terran and Zerg.
With Zerg I normaly upgrade everything for hydralisks, and upgrade air defense. I do this because when I use Zerg, I drop a lot, so my hyrdalisks need to survive the first few seconds while they are defensless, along with my overlords.
With Terran, I just sit down and whore. Any of you who have played with Vorpy will know what I’m talking about. The idea for me is to drag the fight out and make the agressive player use all of his units, then move in and kill him.
I haven’t played SC in a long time but I only used terran. I liked rushing with about two dozen marines backed up by a couple seige tanks. While my marines are busy, my tanks did a lot of damage to buildings before they were destroyed. They were also good for taking out turrets.
Zealots, Dragoons and Dark Templars. May add a reaver or 2 for sieging, or a bunch of Dark Archons to MC and Paralyze the enemy.
Siege tanks are great. Longest range in the game. As a terran player, I want to keep as much distance as possible between my army and the enemy. Sci vessels are also great.
Zerg: Screw Lings, i just get hydras, and upgrade them, but i lose when my opponent gets Long Ranged unit, like Tanks behind Bunkers *coughscrewyouvorpycough *
Now, i’m trying to get another Alternate strat with Zerg…to use against Zerg, simply get Hydras until i have Enough Ore 'n Gas to get 6 Guards/6 Devs and go Air (This is very effective to Ling-lovers =P)
Tanks alone are patheticaly weak in siege mode. You need an escort of Goliaths – upgraded–, at worse Marines with stims backed with a few medics.
Even better if you have some Science Vessels and a handfull of wraths ahead of the battle group to see what’s ahead.
Or vultres, whatever your preffer. Altough Wraths are much better because they can help in Anti-Air defending.
Funny thing a lot of you guys dont like Terran… it IS played by the best players in teh world for a reason…
but to tell you the truth… i dont like them either. too unflexable.
As Toss, i do goons… tho, massing archons isnt a too bad an idea, since most ppl dont anticipate massing archons, so they dont get the sci vessle that fast. Also, archons wrecks havoc on any zerg unit cus of the splash. I liek Reaver dropping on a opponent base to clear the miners. then i just leave them there… they can die it’s for the greater good Also, if it’s a money map, drop high templars, and T-storm the minerals… wich is an even better way to kill the workers
As zerg… i just do hydra/ling. then, when i get it, hydra/ultra.
I love terran so it is mostly what i use. What i usually do is get a couple of squads of marines and medics go in there non stop to really annoy the person, then when i get 8-10 battle cruisers i just go in and murder. When playing with protoss i just build a whole bunch of Stargates and mass produce the carrier and kill kill kill. I never use zerg, I hate them.
Terrans are nifty. They got really fun stuff and are my favorite and specialised race.
They are my fav after all. By the way has anyone heard anything at all even the smallest thing about SC2? I know they plan on making one but just wondering if they let out any details on it.
Originally posted by RamzaTheSquire
I love terran so it is mostly what i use. What i usually do is get a couple of squads of marines and medics go in there non stop to really annoy the person, then when i get 8-10 battle cruisers i just go in and murder. When playing with protoss i just build a whole bunch of Stargates and mass produce the carrier and kill kill kill. I never use zerg, I hate them.
You don’t win much do you?
No not really but i have fun. (God i suck) I should probaly try different tactics.