As a completely one-eyed, totally biased and vocal 6 supporter, absolutely convinced that the 06 ZX6 is the pinnacle of a long line of awesome superior 6's, it pains me to say that I would recommend the 9 for the sort of riding you're talking about. It's a comfortable, powerful, very versatile bike.
Then again, I guess it doesn't pain me that much - after all, you're in need of a weekly commuter that isn't too stodgy. The 9 fits the bill - it's the Clydesdale of the bike world, after all. When you want a finely-bred racer for a weekend blat, guaranteed to scratch that itch, well, then you can get the thoroughbred of the batch. The '06 ZX6R
