I would say chris durand because almost every other interpretation felt supernatural and creepy in the movement. He felt goofy and not like any other version. He moved like he would be a copycat killer like Dean35 said. His situp was also so lazy like he was struggling to get up. I also felt like he moved a bit to fast and with his feet sticking out. The second worst I would say would be Brad Loree however there wasn’t that many scenes that he was walking in.
Chris Durand 100%. Nothing against him personally, of course. His walk and movements were definitely the worst. His sit-up looked like a Michael Myers cosplayer or something. Could’ve been the direction but it was real cringe imo. I also think Tyler Mane is sorta overrated. People have the right to their own opinion and I know people love him but the only super unique thing about his portrayal is that he’s huge. I haven’t seen those movies in awhile but I don’t remember anything super unique about his movements or anything. Then again, the Shape is just supposed to walk, but there’s still more to it.
*Could also say that H20 as a whole is very outta line as a Halloween movie with it being very 90s with the look. That could contribute to the weird looking movements Chris did.