Too many. I like to have favourites, not just one. So (I've probably missed stuff), I'm gonna list general favourites, going mostly by what I've rewatched and plan to rewatch more. My favourites could change over time and if I included stuff that was my favourite once but I've never had the urge to rewatch, this list would be much longer (I wish I could have simple answers to things).

Pre School nostalgia:

• The Neverending Story
• The Princess Bride
• Drop Dead Fred

'90s nostalgia:

• RoboCop ('80s movie but I first watched it in the '90s)
• The Crow
• Tank Girl
• Barb-Wire
• The Island of Dr. Moreau

Other:

• Hellraiser franchise (none are perfect, many are awful, some are pretty great; there's just something I love about all of it)
• Candyman franchise (better quality films over all; between this and Hellraiser, Clive Barker is just my kind of horror)
• Studio Ghibli movies (all of these movies are worth watching more than once eventually)
• DC Comics animated movies (DC adaptations over all have been my main source for finding things to watch over the last few years)

Up and comer:

• I Kill Giants (looking through my personal rainy day collection, this is the most recent 'new' movie that I've absolutely loved and might watch again some time. Time will tell if this will be on my list in the future.