Neither.

Part Of Me getting massacred as it rightly should be.

Part Of Me.

The Edge Of Glory will be less succesful only on USA. WW will be more succesful than POM.

TEOG by miles.

TEOG is made way better than POM.. TEOG will more than likely be played more in the future than POM , WW and USA.. But right now while it's still fresh POM will be played more in the USA and TEOG will still be played more WW..

The Edge of Glory is miles ahead.

The Edge of Glory is miles better than Part of Me. Part of Me is desperate and a clear jab at her failed marriage plus she looks like a try-hard fool in that music video.

I prefer PoM and I think it'll be more successful.