The G lenses are, just going by the charts alone, arguably among the very best on the market; and if you factor in their low cost, the bang for the buck is definitely the best in all of photography at this moment. If you can make the body and its AF work for you, you will be very happy.
Despite this, when I was into 35mm AF RF stuff, I opted for a konica hexar AF, because of its stealth and the superb lens. That is also a very formidable piece, though it has a fixed lens and is thus hard to compare to the G2 in terms of versatility.