Love both, but Cornwall just shades it for me. My favourite holiday of recent years was September 2018, where I spent a few nights in Falmouth, before a week in Perranporth.
Falmouth had more life, with pubs, shops etc. Gylly and Swanpool beaches are lovely, and much more geared towards SUP or Sea Kayaking than the North Coast. Perranporth has a fantastic beach, especially with the tide out, and also has a pub on the beach. I'd liken it to a nicer, quieter cousin of Newquay; still has the surf and a bit of the vibe, but without the Stag/Hen dos.
I also love St Agnes and PorthTowan, again lovely beaches, but again they are very quiet.
Falmouth had more life, with pubs, shops etc. Gylly and Swanpool beaches are lovely, and much more geared towards SUP or Sea Kayaking than the North Coast. Perranporth has a fantastic beach, especially with the tide out, and also has a pub on the beach. I'd liken it to a nicer, quieter cousin of Newquay; still has the surf and a bit of the vibe, but without the Stag/Hen dos.
I also love St Agnes and PorthTowan, again lovely beaches, but again they are very quiet.