SOG Trident, Way to hard to open with the thumb stud. so much so that my thumb slipped and got a deep cut on the serrations.
Poor blade centering, and blade play.
Gerber Ripstop, and pretty much any Gerber.
While the ripstop is good in theory, the fit and finish is poor. Pivot too tight, can't loosen unless you have 2 torx drivers, as the pivot has screws on both sides.
The blade doesn't sit fully in the frame, and has cut me a few times. Clip is tip down carry only.
It's funny because the SOG was about $50 and my $20 Buck Vantage is PERFECT. Blade centering is dead nuts, very sharp out of box, and it holds a decent edge for 420HC.
I'd compare it to 8CR13MOV as done by Spyderco on my Ambitious.
I've definitely been spoiled by my Spyderco's (Delica, Ladybug, and Ambitious), and my Benchmade's (551 Grip, and 556 Mini Grip).