this would be a disasterous merger for Princess. Princess is a very high class cruise line with a much higher class of passengers. The "get drunk"/party atmosphere of Carnival would destroy the high reputation of Princess. Carnival has a low quality of onboard service compared to Princess which also would be destructive. A merger of carnival and Princess could only have a terrible effect on Princess Cruises.
Also, remember, this is a hostile take over bid by carnival which the majority of people at Princess dont want to be a part of.
The merger between Princess and Royal Caribbean would be much better as RCCL is of much higher standards than carnival.
Also, the merger between Princess and RCCL is something both sides want, it would definatly be much better for Princess and RCCL to merge than carnival and Princess