For me, most underrated would be the Tactic.
Most overrated is Bapezilla.
Overrated: Superstar
Underrated: Unstacked PGM
id say
over: Dm
under:axiom or meteor idk
over DM as well
under hectic ;D
Over: Dark Magic
Under: Flying Panda
Over: Dark Magic (nothing wrong with it but still)
Under: Severe (that thing is EPIC)
Overrated: Peak, by far.
Overated: Nothing, people like it, their problem
Underated: fast 201
Personally I hate that thing. 
Again, personally, I luuuurve that thing. Really, it’s my favorite. 
Then you completely missed the point of this thread. Its about what yoyos are underrated and overrated, not good and bad.
Over: Freehand Zero
Under: Cyclotron, X-calibur, HF
over: 888, dm, xvict, pyro, fz.
under: PGM, Hatrick, 5 Star, Sclb, i, Dv888.
James!!!
over:dv888
under:Die-Nasty
Over: 888 and DM
Under: stackless PGM, Hectic
Couldn’t agree more.
I agree with that
Under: L3, Virus, Axiom
Over:DM
Under:Black Knight
overrated :Sunset Trajectory
underrated: Duncan ProYo
Under-lyn
Over-DM
You’re kidding, right?