topic
I would have to say without a doubt that for me it is the Pyro.
Such a unique style and totally groundbreaking originality for a yoyo of its time, and still a yoyo I very much enjoy playing! ^ ^
4xl
original 888 = game changer for me. The only yo-yo I kept using during my hiatus from the community.
Hatrick
A great yoyo but I dont think that it qualifies for the time frame. 
My fave from that era is definitely the YYF 888.
Definitely the 888. I think it was awesome as well because theres so many different engravings/colors of them 
surprised no one mentioned the peak.
Most likely the 07 888 or eli dert
eetsit, bape and the peak.
Man. Tough one.
On my list would be Bare Bones, Bapezilla, G&E2, TFL, Peak, and Radian Mk2…
Oh and recessed Fhz… and the Mg.
(I said it was tough!)
My two would be the peak and the big brother bully
(Love those high-wall organics!)
it would have to be my 888
speeder
I see, just late!