Hi everyone~
Long time lurker, first time poster here

Since noone seems to be posting up the full MB choice list like they've done in the past, I decided to compile it myself based on the replies on this post as well as the spring megabonus list and the FAQ pages (see the point totals on the "Is there a limit to the number of points I may earn?" question)

MGF71-Earn 2,500 points every stay, beginning with second stay (up to 10,000 points)
MGF72-Earn 5,000 points every third stay (up to 25,000 points)
MGF73-Earn 35,000 points after completion of 20th night
MGF74-Earn 25,000 points after completion of 15th night
MGF75-Earn 10,000 points after your 3rd stay

It looks like they cut out the double point/nights options from the spring one and added another 10k point mark. As a reference, this was the spring megabonus list someone posted up earlier this year:

March 1st to May 31st 2007
MGS71 - Earn 2,500 points every stay, beginning with second stay (up to 10,000 points)
MGS72 - Earn 5,000 points every third stay (up to 25,000 points)
MGS73 - Earn 35,000 points after completion of 20th night
MGS74 - Earn 25,000 points after completion of 15th night
MGS75 - Earn double points every stay, beginning with second stay (no limit)
MGS76 - Earn double elite credits every stay, beginning with second stay (no limit)
MGS77 - Earn double elite credits and double points every stay, beginning with second stay (no limit)

MGF76 and MGF77 faq pages lead to error pages


And just to add to the whole number of nights/status relating to the megabonus offered:
I've been a Platinum thru the last 3 megabonuses (100+ nights/yr) and have been offered the 5 stays 10k point choice every time. Each time I was able to call and change to the 35k one w/o any problems though.
^

(I hope this doesnt double post... first submit didnt work)