ETTO of course, but if I were in the market I'd go for an Eddy. Mechanically they are the same car so it is down to the looks and price. I think the Ed30 looks better, and thus to me it would seem pretty pointless to pay more for the rarer Pirelli which I don't particularly like the looks of. iirc the Pirelli was only available in a few colours as well and i don't recall ever seeing one in Tornado Red which (again imho) is the only colour for a GTI.
The advantage of there being more Eddys is that you will have a greater choice and thus be more likely to find your perfect car.