The biggest takeaway here is: Use what works for YOU and YOUR system. Most commercial breweries have no way to process whole cone hops. They will clog the pumps, chillers, plumbing, etc. 15 or 20 years ago I used a lot more whole hops than I use now but I had a kettle that was deigned to work with whole cone hops so they worked. Personally I feel that pelletized hops are better than whole cone for many different reasons... but Sierra Nevada claims to still use whole cone hops and if that is true, well, they use them very well because I love their beers.