just a few reasons why GE90 is the worst of the three as evidenced by its being chosen for the fewest airframes, customers, and marketshare.
1. GE90 Five (5) tons heavier than Rolls Royce, 2 tons heavier than PW. Though it has a better fuel burn figure the higher weight offsets its advantage.
2. GE90 hrust at 92,000 pounds currently hasn't yet made the 95er. Pratt Whitney 4098 has 98,000lbs. Rolls Royce at 92,000lbs.
3. GE90 least reliable of the three, of 5 most often used reliability figures GE90 is last inall but one: dispatch reliability where it is first. In flight shutdown rate it has the most frequent occurance and it has the least amount of a hours between shop visits compaired with the PW4000 and Trent 800.
The GE90 is a flop. On paper it is clearly superior, however once on a wing it's disadvantages far overcome its advantages. It has been chosen to power the least number of 777s and has yet to make money for GE. In fact in 1997 they wrote down its development costs and labeled the program as one that would never make money. However, this July by offering the most money to Boeing, they were given the contract to built the GE90 115B which stunned and angered much of the airlines. United, British Airways, Singapore, El-Al, JAL, All Nippon and many others all denounced the decision. The GE90 is the worst engine for the plane, and the customers have proven that in their choices for RR and PW time and time again.