jay has been riding kanye's coattails since late registration, its clear he's been outshined by his own artists (Ye, beyonce, and rihanna) for well over a decade and hops on their tracks and their remixes to keep his name in the air
the fact is that he has only had one album top 5 in album sales within hip hop in a given year
look at his singles, they are all relevant because of the features, whether thats rihanna, kanye, beyonce, or more recently justin timberlake
jay's commercial appeal outside of them is limited to his shrinking stan base especially after the panned MCHG
nas has been doing featureless albums and albums with no names and they are selling very well and getting critical acclaim - lets not forget he had two albums nominated for grammys in a 5 year period (2007-2012), or that he has i believe around 9 or 10 platinum albums as well as a couple of golds
life is good sold more first week than big sean's hall of fame sold total and was critically acclaimed - as are most of his albums check metacritic
nas has his own little niche and is clearly still influencing the industry hence why j cole, kenny, and drake have all given him props for influencing them - check how many ppl showed up to his ama - note that drake name dropped nas in the best selling album of this year and j cole made an entire song dedicated to him on born sinner
check out the fastest growing hip hop site, rapgenius.com - that's nas' investment. check the most critically acclaimed rap album of last year, rtj2 - that was released through nas' label. MF doom's last joint album also came out on that label.
I'm no jay hater, i own 4 of his albums and i can link my last fm, hes one of my most played artists. but despite not being as commercially relevant as jay, nas has paved a nice niche for himself and continues to release quality projects that are clearly influencing the industry (life is good clearly influenced some of the "grown man" albums that came out after - seen it all, mchg, mmlp2) while jay is floundering critically and needs other artists to do what he is supposed to do better than nas - which is release hits
Real talk. Life is Good is better than every album by Jay after The Black Album. MCHG was a dumpster fire. Jay may be more relevant as far as having his face out there in the public, his albums have been plummeting in quality since American Gangster.