Our in-depth private health insurance review of the top 8 providers in the UK WPA. Our Rating: 9.7/10. ... The Exeter. Our Rating: 9.6/10. ... Bupa. Our Rating: 9.5/10. ... Vitality. Our Rating: 9.5/10. ... Axa Health. Our Rating: 9.3/10. ... Freedom Health Insurance. Our Rating: 9.2/10. ... Aviva. Our Rating: 9/10. ... National Friendly. Our Rating: 8.8/10.