I hoped that PhpStorm 8 will fix bad processing of complex (but correct) Emmet constructions (I am using PhpStorm 7.1.3), however yesterday I tried WebStorm 8.0.4 and understood that situation is the same: nobody cares about Emmet in *Storm.
Here is a complex (but not extremely complicated) Emmet construction - form>fieldset>legend+p*2>label>input^^p>input:s .
Netbeans and Sublime Text process it correctly.
PhpStorm and Webstorm - do not.
Screenshots (marked as 'before' and 'after') for each of 4 IDE / Editors are here https://yadi.sk/d/aOo_GARJWEnBy