Thread: Question: To call or to put

Hello !
- What are the pros and cons of selling vertical call spreads as opposed to put spreads? (If any) I mean why would I sell puts over calls per se, or vice versa?

- What is a "good" IV (makes sense to) percentile to sell a vertical PUT?

- What is a "good" IV (makes sense to) percentile to sell a vertical CALL?

Thanks !
~ Emm