Frank,
"The Best Bike You Ever Owned" is going to mean different things to different people.
I suppose as a well respected engine builder, that's going to start with a lot of HP.
For me, being the best bike I ever owned would include comfort, a forgiving nature, adaptability, safety, reliability, unique looks...etc.
The only way for me to answer the question your topic title is asking, would be to tell you what I wish my bike had so here goes:
1. I wish it was more powerful, but also more linear in it's power delivery.
2. It would run on any fuel I put in it without risking engine damage (because fuel truck drivers sometimes mix extra 87 into the 93 tanks)
3. It would have ABS and traction control
4. It would have the best darned headlights you can get.
5. It would have LED's brake/tail/turn lights.
6. It would have fancy effects for those lights (where legal) such as strobing or other attention getting tricks.
7. It would have heated grips and both saddle and passenger seat heating.
8. It would have the best suspension and brakes I could afford to put on it.
9. I would be able to change the air filter in seconds from the outside of the fairing.
10. It would be fully wired for acc's like USB, and cigarette lighter style plugs using a completely different circuit with taps throughout the bike.
11. It would have LED accent lights (that you can turn off)
12. It would have a switch to turn off all lighting instantly (I'll let you figure out why this is on the list)
13. It would have a louder horn
14. It would have an integrated, yet well hidden radar/laser detector and perhaps jammer.
15. It would have front/back air ride (but that's just because it's so adaptable to what you're doing at the moment).
16. It would have a trick mount for my iPhone with onboard charging
17. It would have at least 2 cameras in discrete locations
18. It would have a security system with proximity enable.
19. It would have an R1 throttle tube.
20. It would have extended mirrors (but I'm wide)
21. It would have nice levers
22. The clutch would be easy to pull even if HD (I'm working on a solution for this)
23. It would have all three models of ZG windscreen on hand.
24. It would have a quickly removable rear rack.
25. It would have a shift light and gear indicator
26. If a turbo, I would have intake and exhaust not interfere with stock lean angle.
...and last but not least, I'd have a high power hidden speaker that plays the sound of those [URL="
bikes starting up[/URL] when I hit a button so I can freak people out at lights
That may not be the list you are looking for, but I answered the question the best I could.
All the Best
Sean