If you wanna compare how many Divas only have one name as opposed to Superstars, here's a list. Let's define one-name as in the name they're given when announced to the ring. Here's a look at the current active roster per WWE.com
One-name Divas
- Emma
- Paige
- Aksana
- Cameron
- Naomi
- Lana
- Layla
- Natalya
One-name Superstars
- Batista
- Camacho
- Christian
- Cesaro
- Diego
- Fernando
- Fandango
- Goldust
- Hunico
- Hornswoggle
- Kane
- Ryback
- Sheamus
- The Miz(?)
- The Undertaker(?)
- Big E(?)
- JTG(?)
While there are more Superstars than Divas who are announced with one name, perhaps it seems like more Divas have single-names because there are so fewer of them than Superstars. In that case, let's take a look at it within each population.
8/17 (47%) Divas are announced as having only one name.
17/68 (25%) Superstars announced as having only one name.
Then, yes, statistically, on the active roster, there is a higher percentage of Divas with single-ring names than there is Superstars.