Okay this is the best match I have ever had. Better than the raping one earlier (those were all noobs so not as much fun as this.)
Anyway, I started off as Protoss (my choice) and, within twenty minutes, I had a few Dark Archons. I went to my Zerg and Terran allies and took over one Drone and One SCV. I took them to separate resource depots where they could build. After maybe another hour and a half, My Zerg were just infinite. My Terran was amazing (ten or so nukes with anything else you want) and my Protoss was just terrifying. In the span of another hour, I was able to both defend my allies from getting killed and destroy one of my four enemies at the same time!
Then, I suggested to my remaining allies (all three) that we should team up. Combine our armies and march. They agreed and I also suggested they move as much as they could to my base and, first, make sure their bases were well defended. As soon as they got their buidlings and workers and whatnot in my protection, I led them to places where they could continue to build, just in case. Then, we took our armies, huge and incredible, and combined them. (Kind of anyway.) The result was about a thousand troops.
I took point and lead a third the entire squadron with a group of Arbiters. Another third was lead by a group of Wraiths from my ally. And the final third was lead by both Archons (mine) and Ultralisk (two allies). The enemies never had a chance. It was great. While they helped me get the W, it was ultimately my win cause without me, they would have already been defeated and I destroyed the better part of the three enemy bases and I killed the first guy anyway.
This was a great match but I do not recommend trying git yourself; you may not fare as well as I did. I got lucky with my partners, they were all really good. My enemies were amazing as well. Be careful with this. It is not a strategy but a description of a match I had.