Which actor, Jason Statham or Vin Diesel, has a greater ego?

Vin Diesel, 100 billion times over.

Vin Diesel is a haughty jerk who struck it rich with the Fast and Furious series. Because to his sour attitude, he nearly got booted out. He feels that he is the finest.

Jason Statham knows what he's excellent at and does it really well; he doesn't conceive of himself as some fantastic Shakespearean actor. He is kind and reasonable. They all say the same thing when you Google blind articles, Reddit subs, and anecdotes from co-stars.

Due to Vin, The Rock declined to participate in any other Fast and Furious films. He was in Fast 8, I believe, and he afterwards declared he would not do any sequences with Vin.

Since 2009, Vin has served as a series producer for the Fast & Furious franchise, and based on a number of blind elements, I believe he has some involvement with the spin-offs. Vin mentioned using a "tough love" strategy to coax The Rock into giving Hobbs the performance he desired.

Because Jason tends to passive aggressively criticise his costars in the media, there was so much tension between Vin and The Rock in Hobbs and Shaw that Jason just smiled during production and did not argue with anything Vin said.

The Rock despises Vin and is friends with Jason, but it doesn't mean he decides anything in this situation.