Deciding between P4 and P5

Hi everyone,

I’m trying to decide which options paper to sit from P4 and P5 (I’m required to do P7 already, so I just need one more). I’m really not sure which one to go with though. I did really well of F5 ( which links with P5), but I think P4 will be more interesting? Not sure which one to go with thought. Would be grateful for any suggestions, or opinions on this.

Thanks!