I used to drive a 2.0 L MY2000 Golf and that thing wasn't too fast (especially after I totalled it
). If, on the other hand, you have the 1.8T, one of the most tunable engines in the country, the ability to find lots of speed is not that difficult. There are kits out there that run about $2000 and you get an uprated turbo (KO4 I think) larger injectors, new uppipe, and a chip. That right there puts the engine around 220-230 HP. Like I said, easy to make fast.
As far as an RS a VR6 or 1.8T stock vs. stock? Well, not sure, but i think both were rated around 7.2-7.4 0-60 MPH.