which is better ?....no not colour.

[stevierst]

There's nowt wrong with revving a 600, its what they're built for!
I currently own a boxeye, and a tweaked gen 2 Fz1, and you can't really compare them tbh. I've had 3 boxeyes, and truly love them to bits. Light, incredibly forgiving, quicker than you think, and for what I bought mine for, economy! (I've done 73mpg!!).
The thousand cc bikes are completely different, and I adore my gen 2. If I had to choose to sell one? Tough call that, but the boxeye would be first to go. The thou will do everything that little bit better. (apart from economy, only 45mpg out of the gen 2).