In this generation of high technology and strong competition between manufacturers, there must be something that is far more superior that the rest. Here, I'm asking your honest opinion. 1.) Which of the following engines you think is best for the B777-200ER, the RR-Trent, the PW-4000, or the GE-90? 2.) How about for the A330-300? Is it the RR-Trent700, PW-4000, or the GE-CF6-80E1? Thank you and Happy Flying.