The JWS/WTS. may be one of the worst as far covering up these problems as they are indoctrinated to protect Jehovah's earthly organization.
To conclude that the JWS have a huge problem with pedophilia than other religions wouldn't be correct in regard to numbers though.
In the past decade or more the covering up of these problems is has been openly addressed by the WTS themselves,
just to appease the followers, who may have heard of the organization making light internally of pedophilia within the organization.
An Awake magazine headlining the subject not long ago.
One thing to take note is what the WTS. publicly says in their magazines is not what they tell their Congregational elders privately to do.
Most JWS today do not know of the WTS. instructing their elders to only report these situations to outside Law Authorities
when it is only required to do so by local laws.
The WTS's recent instruction handed out to all congregations , that only when its required by local law should the situation be presented
to legal authorities, tells the tale of how they want to keep the outward image of the organization clean as possible.
Paying no real respect to victims or individuals how may be in some social contact with these kinds of perpetrators.