Alright, I noticed a lack of thread since LotV rush. I'm playing Protoss.
What are builds against which you guys have problems or builds that you love doing?
A personal favorite lately has been to open 2Gate into expand and harass with 3 or 4 adept, try to get something out of it. Then I tech into Stargate and build phoenixes and keep on the harass, eventually getting to my first base. I'm careful not to lose any phoenixes, and then I will push at around 8 minutes with 6 to 8 phoenixes, a group of stalkers and zealots and most importantly, a few DTs mixed in there. The Phoenixes lift the important/dangerous units and the DTs will most often at least deal their cost in damage or more. I can generally cripple my adversary enough with this attack during which my third is firmly established and I start by fourth and switch production to void rays/carriers.