I bought my first Kawasaki in 1973.
For bikes my favorite is my newest, a 2008 Kawasaki ZZR600- my 70s and 80s bikes were less reliable, vibrated more and had weaker power, braking, shifting and handling. The air cooling made me sweat more in the summer.
I still own a 2002 Honda Shadow 600cc cruiser, with the old style V-twin, 4-speeds, but newer water cooling, and about half the vibration of my previous 1978 Yamaha XS650.
For the dozens of bikes you have owned or ridden, which few stand out the most?
“Banking institutions have banished precious metals and substituted a more fluctuating and unsafe medium; they have withdrawn capital from useful improvements and employments to nourish idleness for the few, who prefer demoralizing pursuits to labors useful to the whole; the peace of the whole is endangered by evils more easily to be deplored than remedied." by Thomas Jefferson,1810 (edited)