i think it works as,
JH5=UE4 Killer
JH7=UE7 competitor
JH10=UE10 Competitor
10X3 = Less detailed, and smaller Soundstage JH13
JH11=Properly done UE11
JH13=Aural Sex
So i would see how some would prefer the JH11 over the JH13, just like someone would prefer the Ue10 over the Ue11. I think it's just a different sound signature where i believe the JH11 should sound more fun, with a "U" sound signature while the 10X3 and the 13 would be more neutral. Some people prefer the UE7 over the UE10 cause the UE7 is bass heavier and less neutral.