Where and how do you intend to ride
I ride an 03 FZ1 I like a lot. I've ridden a friends 06 FZ1 briefly,, has the Ivan mods, sportier than the Gen1, good fun. A friend has a 16 FX09, added a windshield and had the saddle repadded.
The Gen2 FZ1 is a Sport Tourer, more upright riding position...