I seriously thought I would end up unconscious from all of the pain I have experienced on Green Lantern at Six Flags Great Adventure. I was also scared, or, scarred, on Raptor at Cedar Point, both in my (the 2nd one is definitely unpopular) opinion excruciatingly horrible experiences from two great amusement parks. Not to mention, that awful Pinfari zyklon collecting dust at Morey's Piers. These three are the worst of the worst, along with some scrappy woods (Roar(SFA), Wildcat(HP), Grizzly(KD)... All are terrible, though not all woods aren't that bad- in fact the best coaster I have ever been on so far is a wood lol).
And yes, I have been on some Vekoma SLCs, which in my opinion aren't even that bad- I'm referring to Mind Eraser(SFA) and Great Nor'easter(Morey's Piers). We'll see if my opinion changes when I go to SFNE in a few weeks.