All the movies can make perfect sense if you accept my 6-timelines theory, placing each movie in the timeline where it makes the most sense. But if you insist on trying to fit them all in the main timeline, here's how I'd do it.
-Movie 1: No need for changes here, other than Krillin meeting...
Base Kids, who fought evenly with Eighteen, weren't that far from Base Adult Saiyans in my books. Kaioshin, on the other hand, was scared of Puipui, whom Vegeta screwed most likely without even using his full base power.
Eighteen wins.
PART 35
Pot and Goten have to return to the Otherworld. Since Pot has neither SSJ3 nor Instant Transmission, she's not as bold as Goku was at this point, so she doesn't go to negotiate with Babidi and Buu, who continue doing as they please.
Over the following 1-2 days, Beetroot trains in the...
In my books, Cell got 2x a boost when he absorbed 17, and his final transformation was implied to be an even greater deal, which means he'd become 2x+ stronger. Vegeta was at most 1.5x stronger than Semi Cell, so I'd believe Perfect Cell would screw him.
And ignore all the previous statements that contradict it? The power level list could be something like...
Saiyans' Saga Goku (full power): 5,000
-kaioken 2x: 10,000
-kaioken 3x: 15,000
Saiyans' Saga Vegeta: 12,000
Vegeta (post Earth): 15,000
Dodoria: 13,500
Zarbon: 13,500
Monster Zarbon...