They're different knives. If you liked the flipper & blade on the JYD II, then by all means, get it. If you think an A/O is better for your needs, then get that. That's really the difference of the 2. They do, of course, feel different from each other. Also, the Cyclone can be a manual opening knife. I found that it did not open as smoothly as a JYD II in manual mode, though. However, as an A/O, it works great.
Personally, I preferred the mini-Cyclone. I like the smaller size for pocket carry of the JYD I & the mini-Cyclone, but the JYD I doesn't open as smoothly as the JYD II, so I prefer both of the Cyclones. However, the JYD II opens VERY smoothly & quickly.
While the JYD's clips didn't bother me, I seem to recall complaints about the JYD's clip compared to the Cyclone's.
Good luck on your choice.