stick to galaxy s4 has coolest features
cool features does not necessarily equal good phone. The SGS4 happens to be a very good phone but many of the "cool" features dont work well or at all. My wife has it and she really likes it but not because of the "cool features," many of which she has disabled because they cause more of a nuisance than a benefit.
Personally there is a big difference between the q10/z10 and the SGS4 and it comes down to what you want your phone for. In terms of communication there is no comparison, the blackberry's are way better. The hub and notifications are amazing and thats an area where android is sorely lacking.