Hi everyone! San Diego is my hometown (now I live in San Francisco) so I thought I'd write some recommendations... San Diego is beautiful and very safe. You have to go to the beach, I love Pacific Beach or La Jolla Shores. Check out the zoo if you can because it's amazing. Downtown in the Gaslamp District is fun for bars, restaurants and nightlife, but if you would like more of a local's experience, go to North Park, South Park, or Hillcrest (very gay friendly.)
Sea World is fun, but if you have to choose, I'd go with the zoo. Fashion Valley Mall is where all the great shopping is, but I recommend checking out the shops in the neighborhoods mentioned above. If you want a cheaper hotel, stay in Hotel Circle but if you want beautiful views, stay downtown. In Hotel Circle, try to check out Albie's Beef Inn. It is not an inn but a bar/lounge with great food. It is in front of the Travelodge. Enjoy!