As a pianist and music arranger, I must add that sampling is one of the basis of Hip Hop and trap and classic styles of production are really separated by the advancement of technology. There is no question you can do much more with a Digital Workstation in 2015 than you can in 85, but tech doesn't matter if you don't have skills....
Producers with actual music ability (i.e. playing an instrument and having understanding of actual harmonies) tend to DESTROY one-note/Fruity Loops producers time always.
Great Hip Hop Producers, hell great MUSIC producers since they can do all genres:
Devante Swing
Teddy Riley
Timbaland
Dr. Dre
Rza
Neptunes
Scott Storch
Ryan Leslie
R Kelly
If these trap producers picked up a music theory book or took some music classes, then they'd give the classics a serious run for their money. 4 Bar loops with some synths, pitch blend, tired hi-hats, corny strings, and filters quickly fades...
Also....
Can any of your trap dudes do this?
Or This?
How About This?
Music Knowledge and Creativity >>> Any technology