Channelman manman's video won't blow away the preconception that Protoss, in the current state of StarCraft II, is overpowered. In his comparisons, he first shows Protoss units attacking as they usually do, and then with their abilities modded and humorously exaggerated.
Number one is pretty much my favourite, with all those Stalkers and their "Blink ability" set to a really short cooldown. But those of us who played competitive StarCraft experienced most of these. The zergling runby (this one's an exception by not comparing Protoss units), the Zealots' deadly charge and that damned Tempest and its range at the end.
How it looks vs. How it feels [YouTube]