There are too many good moments. This one is probably not the best but something that really stands out to me...
During If God Will Send His Angels, after the first chorus when the patented ringing Edge guitar riff comes in - it is really a great moment. When I listened to the first three songs of POP, I am taken in a musical nightmare where U2 are trying to sound like Chemical Brothers, Beck, or Prodigy - I forget that they are U2. Then lost amidst the madness comes this riff that reminds me that U2 are still U2. Then it is followed up with the infectious Staring At The Sun - and the album reaches its highest point. Then it starts going downhill again to the point of being forgettable and not something worth listening to live in tours after POPMart.
So yes, the kicking in of the Edge's guitars in If God Will Send His Angels is definitely one of their best moments.