If we are talking in a true fighting sense then Wing Chun will give you 'attributes' to use but as a standalone fighting system it is flawed (IMO). I respect wing chun and it's history but all this stuff about 'dynamic power' etc etc does not wash with me.
The punches may be fast and direct but they are weak punches. Too much tricep and not near enough body mass to cause damage. Wing chun people train to fight wing chun people. The body stays at a certain distance from eachother and they stay vertical. Watch what happens when someone closes the distance at speed and goes for a takedown.

I know someone who got into an altercation with a Wing Chun practitioner and the WC chap caught him off gaurd and straight blasted him. Although initially stunned the other managed to shake off the attack and gain the upper hand.

I myself have sparred with a red sash wing chun when i was only a 1st Kyu BJA brown belt in Judo. Not to brag but he was taken down at will and subbed with ease on the ground. Some pitter patter punches were caught on the way in but they were easy to shake off.

I am not by any way into art bashing and anyone can gain benefits from practicing any art but to claim it as an adaptable and practical standalone fighting system is a bit of an overly bold claim IMO!