Best Organic Foods

I am interested in knowing which foods are best to get organic, and which don't matter so much. Everything I know I learned from google, so I tried to look up the answer on the web. The first site I found had this shocking statement:

"For some families, ketchup accounts for a large part of the household vegetable intake..."

What?

Here is what another site said about the best and worst NON-organic foods:

Twelve "cleanest non-organic foods"

• Asparagus
• Avocados
• Bananas
• Broccoli
• Cauliflower
• Corn (sweet) AVOID: Probably Genetically Modified
• Kiwi
• Mangos
• Onions
• Papaya
• Pineapples
• Peas (sweet)

Tweleve RISKIEST foods

• Apples
• Bell Peppers
• Celery
• Cherries
• Imported Grapes
• Nectarines
• Peaches
• Pears
• Potatoes
• Red Raspberries
• Spinach
• Strawberries


And here is another site's list of "most risky non-organic foods" with the worst being listed first:

1. Peaches
2. Apples
3. Sweet Bell Peppers
4. Celery
5. Nectarines
6. Strawberries
7. Cherries
8. Pears
9. Grapes (imported)
10. Spinach
11. Lettuce
12. Potatoes
13. Carrots
14. Green Beans
15. Hot Peppers
16. Cucumbers
17. Raspberries
18. Plums
19. Grapes (domestic)
20. Oranges