Here is my five, in no particular order:
Ducati 999
Because, in my opinion, it is one of the best looking bikes ever made. I would treat this as a moving piece of art.

Suzui Hayabusa
It's my childhood sweetheart. Once again I think it is a gorgeous looking bike. Probably not the most practical, but it would be lots of fun. I would probably use this if I needed to get somewhere in a hurry.

Aprilia Falco
Since owning mine I have realised what a brilliant bike it is. It can do everything I want without a problem (apart from starting every now and again!). I would use the Falco for everyday commuting and touring.
(don't think i need a pic of this one!)
GSXR600 SRAD
Before I bought the falco I was also thinking about a SRAD. Like the Hayabusa I love the curvy styling. I would use this as a track bike.

Honda CRF450
For offroad fun :D
