My Girlfriends got the 2.0 Gti and I've got the 1.8t (both 2001 cars). and I think they are both great cars. okay, the 2.0 is not as powerful as a GTI should be, but it's still quick-ish if you drive it right...and it sounds better than my 1.8.
The earlier Golf's may well be quicker, and were great cars of their time, but times change and cars get more and more weighed down as modern safety features become the norm.
You might get to 60 mph a second or two faster in your Mark 2.....but it's nice to know that I've got ABS, Traction Control and Airbags etc if it all goes pearshaped down the road.