I started riding when i was 7 or 8.
Learned on 2 1969 Honda Trail 70's, my grandpa bought new. I still have them today.
spent the late 80's and early 90's riding dirt in the so cal high desert...
transitioned to street as soon as i legally could, and never stopped.
was into sport bikes in the late 90's - mid 2000's, but got too old and fat.
last one was my 2003 Yamaha R1, Limited edition in black with red flames
IMO the greatest bike ever made (at the very least, the best bike i've ever owned).
Other than that, i've always had a thing for 70's japanese bikes. honda CB or Yamaha XS
the bikes people turn into "cafe" garbage now...
Current stable:
Dirt
'69 Honda trail 70 (x2)
'79 Honda XL75
'82 Honda ATC 110
'86 Honda Fourtrax 350
'89 Yamaha Moto4 200
'92 Suzuki Quadrunner 250
looking at picking up a new (or lightly used) Yamaha TTR230
Street
'81 Yamaha XS110
'76 Kawasaki KZ400 (x2)
I usually have a handful of ironhead sportsters laying around (quantity varies day to day

)
i don't particularly like them, but they're easy to fix, and even easier to sell.
This '78 currently resides on the lift table.