Hutchison Whampoa, a smaller brand in the UK, will rebrand O2. On YouGov’s BrandIndex -- a combined evaluation of consumer’s perception of quality, value, reputation and satisfaction, O2 comes first among a list of 11 mobile operators with a score of 11.3. The brand is also a leader in ‘awareness’ on the brand-measuring tool, with a score of 91.5. In comparison, Three is much smaller and a weaker brand. Three’s index score is 1.3 coming in seventh place on the list of 11. ‘Awareness’ of the brand measures at 74.5.