It's hard to say for sure. Roshi has some tricks up his sleeve and a lot of experience, but Jiren's raw power and abilities might give him the edge. Maybe it depends on the circumstances and the strategy each one uses.
If you want the clearest chapter reference, go to Chapter 298. Early on, Grandfather, I, I can testify, everything Sister said is true." Right as...; later, the chapter leans on Everyone cast their glances in that direction..
Chapter 262 is the strongest chapter-level answer because it starts from Wen Jiaojiao couldn't stand it anymore and immediately logged onto her... and follows through on Your manager restricts that as well?.
Chapter 259 is the strongest chapter-level answer because it starts from While the villagers of Chixia Village were all immersed in the revelry of... and follows through on It wasn't that he was scared..
Chapter 254 is the strongest chapter-level answer because it starts from Just when everyone thought that Jiang Yan wouldn't last long and would... and follows through on A Jiang Li whose head was only filled with books and who never joked or....
Chapter 285 is the strongest chapter-level answer because it starts from He could distinctly feel his back rubbing intimately against the ground... and follows through on Fortunately, the Mystical Skill of Xuan Sect also included knowledge of....
If you want the clearest chapter reference, go to Chapter 241. Early on, It wasn't the director," Jiang Yan said with a blank expression, "Did you...; later, the chapter leans on Even if it was a slip of the tongue, how could you make such a mistake at....
The best chapter pointer here is Chapter 279, "The Sudden Blaze". It opens with After getting a good scolding, Jiang Yan resigned himself to lying quietly... and closes on I can't take it anymore," Jiang Yan exclaimed with a weak breath, the....
If you want the clearest chapter reference, go to Chapter 288. Early on, Jiang Li and Zhao Lang were lifted onto stretchers and taken to Central...; later, the chapter leans on All the way there, they were escorted by police cars..
If you want the clearest chapter reference, go to Chapter 245. Early on, Jiang Yan became even more smug upon hearing this.; later, the chapter leans on Oh, only thinking of your dear brother when you've got nowhere to stay?.