Here's how many times people have looked at hints:

Doctor Esker's Notebook


Hint
Small #116891163184017051466112796210691221
Small #216011073177615771434110286010461099
Small #3151196317441551145110838859911061
Medium #11549977174614591524116589710731108
Medium #21318931163013731504109090710481097
Medium #312238411273132814701010851925997
Large #113227611265125712611003779842891
Large #21289657123511101162963730799837
Large #315337241245137410631013720664773


Son of Doctor Esker's Notebook (The Sequel)


Hint
Small #1299555372340307185374357131284
Small #2294575376350299150367366138269
Small #3260559345360307141359358125258
Medium #1292586345358259130359391128271
Medium #2272566294347258132326391119277
Medium #3280579260343206124308399119250
Large #1240631275381181143295398132286
Large #2221594243381217137256380121271
Large #3207480261291195184280383132322

Return of Doctor Esker's Notebook (The Other Sequel)


Hint
Small #16810610043896647598566
Small #2659910042926550578366
Small #3649610441865748587771
Medium #1669010850915950639367
Medium #2688911247915455608758
Medium #3668811249864848637862
Large #1619312256974949686777
Large #23684106551064361646484
Large #3378610468944348444677

The hints are sorted by how much help they give you.
The last Large Hint on each page comes very close to just giving you the solution.