16v is less heavy and thirsty than VR, handling on both is pretty crap in OE condition.
I would go 16v and stick on some decent arbs and suspension components.
Either will take a 1.8t engine from a Mk4 when you get bored, VR trim level is a little better as std.
Buy on rust/shell condition at the end of the day.
The story about 170bhp is a load of old guff imo