I had a ZX-14R, crashed it earlier this year, so had the choice of either the R3T or the Ninja in the garage.
Personally, found the ninja very comfortable, much better braking, and great performance. I’m 6’3 and 225, and found the position on the ninja to fit me perfectly.
Generally, the ninja was easier to ride faster around the tiny backroads here in CT.
But, I much prefer the Rocket for longer cruising, anything over about 4 hours the Rocket wins hands down. And for driving 2-up it’s great.
Horses for courses.
And, now I really want an H2 SX SE.