Default listening to music on i9305 with Google play

I have to say I love listening to music on my S3 i9305 with Google play instead of iPod or other mp3 players. It easier to put music and I cannot find out much difference between S3 and iPod when using same earphones, just so inappreciable in my ears. If I know it's going to be a long day walking, swap to the extended battery got from mpj, so I never find battery life to be a big issue even when not hooking to outlet.
Do you still prefer using mp3 players?