I think both are amazing, very unique in their own way. My fave is Shafqat but i also love Rahat's voice and all his songs are superb. I especially love "Ore Piya"...and "Teri Ore". Both of these singers are gifted with such unique, amazing voice and i am really proud that they belong to Pakistan :). Everytime i listen to any of Shafqat's song i fell in love with his voice and wish that i find a guy for me with a voice like that :p. LOL!