Here are some comparisons between the official policies and guidelines of the two parades I remember seeing in-person in my life:
Application Deadline for Marching:
Macy's™ Thanksgiving Day: 8 months before parade.
Provincetown Carnival: 3 days before parade.
Cost to enter:
Provincetown: $0.
Macy's: $1,339.
Time before the parade marchers must arrive:
Macy's™: 6 days.
Provincetown: 45 minutes.
Philosophy:
Macy's™: "..legendary for its rigid standards and it's [sic] highly competitive selection process." (I guess the rigid standards don't include proper punctuation. Hahahahaha.)
Provincetown: "...festive, colorful, and tastefully outrageous..."
Parade Pace:
Macy's™: 120 steps in 1 minute.
Provincetown: 0.25 miles in 10 minutes. (At 3 feet per step, this is 44 steps per minute.)
Theme:
Macy's™: America's Favorite Parade
Provincetown: Summer of Love: Peace, Love and Go-Go Boots
Nudity:
Provincetown: Not allowed.
Macy's™: No stated policy. (This kind of surprised me.)
In My Head:
Macy's™: Weeeeee! Snoopy!
Provincetown: Does this shirt make me look straight?