Personally, I'm a big Unofficial Guides fan. Some advantages over other things like TGM and RideMax are that the UG:
-has plans that incorporate EMH mornings AND evenings
-has plans for holidays and special events (like pirate and princess party, and the halloween and Christmas parties)
-has plans for adults, teens, small children, parents with teens and small children, seniors, parents who only want to please their kids, etc etc etc, basically any combination of interests
-has plans for early morning risers, people who like to sleep in (like me, these plans start at 11am and still get everything in with minimal waits...), for late night touring, and different day combinations like one and a half days at MK, etc
-plus, the UG online subscription (still only $7.95 for a full year) includes all of the plans, a program to personalize your own plan based on what rides you want to see, plus tons of general park and planning information, including in depth reviews on all dining locations and resorts (incl. off site)
-and, my favourite, right now the website subscription includes Lines, which is their mobile wait times program (avail. on iphone as an app, and on tons of other phones as a mobile web site) that has updated info on posted wait times, actual wait times, fastpass times, and predictions about the waits and about when fastpasses will run out. I love this program, and it is really easy and accurate. Users can even upload wait times as they experience them to make the program more accurate.
Ok, so this totally sounds like an ad for UG, but I really am just a happy customer. I truly think it's the best out there, and you can look at the website and get a preview of the kind of info you can get with the subscription. It's just touringplans.com
I hope this helps!