To be honest with you, this is probably the best place to find info about working for Disney, CPs, PIs, etc etc.
The reason I say that is because everyones experience will be different.
This is such a huge place to work with literally 50,000+ jobs to be had, that its really tough to tell you exactly what to expect.
You mentioned that you would like to eventually be in resort management. In that case if you go for a CP program, you would need to select hospitality. If you were to try to go for a PI, then you would need to go for the Rooms and Related Internship.
Ive worked in 7 different resorts at Disney now and can atest to the fact that each and every one of them was a different experience. Even though you are doing the same job technically , its such a difference that I cant say I had the same experience at any one in paticular.
I loved a few places and hated a few places.
Just ask questions on the board. Trying to find a website with printed information will not give you the answers you seek. Just ask around for peoples opinions and their experiences and you will get alot better information.