Resolved Question: What films would you recommend based on what I like?

Here are a list of my favourite movies:
- Twilight (the series)
- Bride Wars
- Its's a boy girl thing
- A Cinderella Story
- Scott Pilgrim vs. The World
- Dear John
- Letters to Juliet
- John Tucker Must Die
- The Back-Up Plan
- The Proposal
- The Holiday
- When In Rome
- Valentine's Day

I have watched a lot more, but these are the ones that come to my head
right now.

Based on my list of fave films, what other films would you recommend
that are of the same genre, age rating and similar storylines?

Thank you in advance to all those who answer helpfully and
appropriately.