I went to Disneyworld last a while ago, but I should be able to provide a basic rundown.
There are four “main” attractions:
Disney’s Magic Kingdom
Epcot
Animal Kingdom
Hollywood Studios
There’s also Pleasure Island, but I really only visited there for Disney Quest (I believe it was called) which had a bunch of addicting and creative arcadish games (one with a big walker and such, it’s all very active not sit in a chair and passively shoot tie fighters for a lot of them).
Anyway I went for five days with one other. Four days dedicated to each park (though that quickly changed), and one to pick up the slack or revisit rides I really liked. Unfortunatey, I cannot assure you you’ll have the same experience because a lot of it can rely on the actors (their name for staff because they’re allr equired to put on a show). For example there is a “Safari” in Animal Kingdom, the line is usually freakishly long (even moreso than most lines). We got up early on teh day the park was open early to Disney Resort visitors, and got on straight away and the ride was interesting but it was made wonderful by the driver (or “driver” not sure if it was on tracks or not) and his lovely sense of humor and the feeling he put into the lines he was (presumably) given.
One thing with disney though, be prepared for lines… lots of them. Express passes are very nice, you can use your ticket/pass to get express passes (may be certain ticket types, not sure) which can get you in a much shorter line but most of the time be prepared to wait.
Disney’s Magic Kingdom:
I advise using your discretion on what to visit and not nescessarily taking peoples words for it. Splash Mountain, Space Mountain, and the Matterhorn (which is apparantly prepetually broken down for some reason) are fun rollercoasters/rides, if you’re into that sort of thing. Pirates of the Caribbean is probably a must ride (even better if you can convince your friend that “there’s a huge drop coming up after this I read about it”). Small world is one of those rides you have to go on once, even though it will be guarenteed to haunt your dreams until the end of time. You’ll definately want to stay to check out the fireworks or parade or whatever they’re doing now, they’re always wonderfully done.
Don’t overlook some of the kiddier rides though. Roger Rabbit, and a Mr. Toad ride are short, little wait, and hilarious/fun. If you want an acid trip and your dreams to be haunted you can’t go wrong with a Winnie the Pooh ride that is surprisingly good. Sure, they’re a little kiddy but this park is great to bring out the kid in you. And with a friend, you can joke around during the ride and make it even more fun.
There’s also a little star wars ride that’s very amusing to say the elast, and an indiana jones ride that can be fun (or maybe that last one is Disneyland only)
Epcot:
It’s fun, btu i wouldn’t dedicate a day to it. The day we dedicated it was raining so we decided to soak most of it up the 5th and final day, it really didn’t take that long. The ebst part about it really is that you can go to “Germany” and go pick up imported German Chocolates and other conventions, run over to Japan and get some anime, then go to various places and do some rides. I believe Epcot also has Mission: Mars, not for the easily motion sicknessed it is a GREAT experience. It’s allr eally knobs and levers that don’t do anything with a cool show going on around you, but it’s still fun. There’s also a ride that goes on in the “ball” in the center but it’s little payoff for a long wait. i mean it would be fine for no wait time but unless you have a little kid (which you don’t) I don’t advise the ridiculous wait for it. As with the fireworks… the laser light show is amazing. I think I watched it from around Norway.
Animal kingdom:
Not a WHOLE lot to do here, it’s a zoo they vehemently declare is not a zoo. A lot fo stuff is, again, good for kids. THe Safari i told oyu abotu was fun, adn there was a water raft ride that was fun. “A Bug’s Life” (or some show based around it), it was okay, another one of those things not nescessarily good for the amount of waiting required. Adventure Everest? Sadly I went there before it went up, but frome verything i’ve heard is a must go.
Hollywood Studios:
This is, in my opinion, the best park. Rockin Rollercoaster you should probably go on once at least. Not quite as good as Calafornia Screamin in Disneyland in California, but possibly the second greatest disney rollercoaster in terms of technical aspects (as opposed to imaginative aspects in which it is lacking). Muppets 3D and Honey I Shrunk the Audience are amusing escapades. But at night, stay for Fantasmic… no I’m not kidding or suggesting STAY. When I went we got a seat in the second row (and the show was packed by the time we got there) and it was one fo the best shows I’ve ever seen. A+ 5 stars etc.
Stuff that I can’t remember what park it’s in:
Stitch’s Great Escape… okay I have an odd weakness for Lilo and Stitch, sue me. But this show thing is one of the best things ever.
Haunted Mansion, probably in Magic Kingdom but. It’s okay I only saw it a long time ago when I was 5, and when I was a kid I had an abnormaly high fear level, even for that little so i never went back there even though i could probably handle it now. It’s worth checking out at least.
Disney Philharmagic: Best… theatrical show… ever, well not ever second to Fantasmic, but I love that thing so much.
Tower of Terror: I think in Hollywood, this ride is really fun, but if you don’t like that falling feeling, don’t go.
As for resorts, I advise a Disney resort, other ones are cheaper but for some rides and stuff the 1 hour early enterance is a godly boon. I stayed in one that I vaguely recall being '80s themed (or maybe it was just “past” I kinda remember '60s a bit as well), and it was very good, as far as hotels go at least.
I may be forgetting something but I hope it helped a bit.