The roughest/worst steel coasters I've had the "pleasure" of experiencing are:
- Desperado - Just such a terrible ride. The height and layout gives the illusion of something fun, but the bunny hops lacked airtime and the transitions were so terrible it felt like my spine was knocked out of place. Felt that ride for a week >_<
- Shockwave at KD - This ride was ridden only once, but that single ride was enough. The ride itself is ok, but that lone helix of death made that ride go from "General Fun" to "Get me the **** off this" in half a second. Ugh, so vile and glad to see it is gone.
For wooden coasters:
- Wildcat at HP - No matter how many times I ride it, where I sit or how early in the season I've jumped in line, the ride just ends up making me lose hope for it over and over again. The Millennium Flyers do **** all for the ride, as they tend to shuffle back and forth during the turns. The ride needs an entire rebuild from the ground up.
- Mean Streak - I hate this ride ever since I first rode it. I have given it plenty of chances over the years, and it has only delivered once. The only time I have given the coaster a direct re-ride was this past "Coaster Appreciation BS Day" in which the entry was cheap and they were running all but a few coasters - in the rain. The trim was turned off and the wet track just had the train actually giving some airtime (shocking, I know). There was barely any shuffling til the last couple of turns, but the ride was vastly superior than any other time I have ridden it. Since Cedar Point will more than likely refuse to change the situation with the ride though, it shall sit as one of the worst/roughest wooden coasters Ive ever had the chance of experiencing.