Early November tends to be a lot slower. HHN will have just wrapped up (Nov. 2nd is the last day this upcoming year) so I think you'll see much lower crowds and can get a lot done. CAPSLOCK's suggestions above are on point.
Just have a look at the attractions list and plan what is a must vs. what to skip.
If it were me (a thrill ride loving family) and I only had a day, I'd break it down to:
Would Do (from most important to least):
- All Potter stuff
- Spiderman
- Hulk
- Mummy
- Jurassic Park River Adventure (water ride but usually just get a splash as opposed to soaked)
- Transformers
- Rip Ride Rockit
- MIB
- Kong
- Simpsons
- Minions (ALWAYS a long wait due to capacity. If this is a MUST for you, get to it at rope drop, it's the first attraction you'll see when entering USF)
Would Skip:
- Fallon
- Fast and Furious
- ET
- Water rides at Toon Lagoon - you will likely get soaked on these two rides
- Seuss Landing (my kids have outgrown it all)
- Kidzone (same as above)
- Storm Force
One a slower day , doing rope drop and using single-rider where you can, my "Would do" list is do-able pending how much time you spend in the Harry Potter lands (i.e. how much time exploring the shops, watching the shows etc.).