1). The safari icon - It's pretty much the only icon I hate but it just looks SO out of place on the screen
2). The play icon that would be in the status bar when your music was playing - I'd left my music on all night once and I had no clue because my volume was turned all the way down
3). Podcasts in the Music app - I don't care for the separate app,it makes things too complicated
4). Old Notes - There's just TOO much WHITE! The yellow on top is very weird too. Every time in open it it just shocks the hell out of me
All in all I like iOS7,I've grown to adjust. But these are just a few things I think I'll always hate...