in concept RWD is ultimately a better design than FWD. with FWD you are asking the front wheels to turn, stop, and accelerate and the rear wheels to doing almost nothing but hold up the rear of the car. putting power through the front wheel's while they are under lateral strain ( turning the wheels thorugh a corner ) means the tyre will reach is ultimate grip threshhold earlier.
putting the power through the rear wheel's instead will allow the front tyres' to use all of its grip laterally, the rear wheels can deal with putting the power to the ground as they arent working as hard. it all adds up to more 'on power' grip through a turn.
in saying that, you have to compare apples with apples ( or chassis with chassis ) as there are some rubbish RWD cars out there that have inherent issues with the basic chassis design, and fantastic FWD car's that can run rings around them and even some good RWD cars.
the GTV is getting on now but set up well with good shocks and springs, it is much quicker through corners than alot of RWD car's. as for the 2 litre being better balanced, the V6 more than makes up for this when pulling out of a corner, there is quite a huge power difference!