I voted-
I have a TurboGrafx-16 and/or its variants of the TurboDuo and Turbo Express.
I have a PC Engine and/or its variants including PC Engine Duo and Core Grafx.
Practically all of them!
As far as exposure goes, I got my first TG-16 within a year after it came out and I picked up the Turbo Express and Duo much sooner after they were released.
After losing $500 to a mail order company(Game Train?) advertised in EGM for a Turbo CD with Ys I & II when I was 13/14 years old, I didn't manage to finally get a Turbo CD until (I think) a year later, which would've been 1990/'91. While waiting for the Turbo CD to arrive at Radio Shack, I picked up Golden Axe and Super Darius locally and Side Arms Special not long after the Turbo CD finally arrived. So that was the beginning of my importing.
I didn't get a Kisado until SFIICE came out. But even then I didn't import HuCards. I picked up Vigilante and F1 Pilot during a trip to Vancouver a few years before I moved there. But it wasn't until I moved to the big city that I started to find PC Engine hardware and HuCards. But I had been importing CD games shortly after the Duo came out, including: Snatcher, Kabukiden, Ys IV, Neo Nectaris, Monster Maker, Cosmic Fantasy 2 U.S. and Exile U.S..