Personally, I think the 4/4S has the best design and I love it!
For some reasons, 4/4S does not look Apple to me. It looks either IBM/Renovo to me.
I like IBM/Renovo's design but they are somewhat emotionless.
The main guy behind 4/4S was a IBM pull ("antenna gate") who Jobs fired after all.
I think 4/4S is Tim Cook's baby.