Which version of the eliminator was the toughest?

Curious as to what the subreddit thinks was the toughest version of the Eliminator across all 3 iterations of the show. Personally I think the Sky reboots second series eliminator was the toughest (series 10 as some would call it), the two travelators, the swimming section and having to climb the pyramid, its no surprise people struggled to get up the travelator by the end.

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