I, along with most on here are obviously biased towards the Rams and feel that it's the better job. However, after taking a closer look, the Jacksonville job isn't too far behind.
The biggest asset to consider would be the QB's. I would favor Goff over Bortles at this point. Bortles has regressed considerably after showing promise while Goff is still an unknown. I wouldn't think there would be much difference in arm talent but Goff is 2 years younger. The Jaguars' GM has recently said that the new coach wouldn't be forced to make it work with Bortles so they may wind up having to find a new QB but they also have a likely top 3 draft pick. This might be even depending on how a candidate feels about Goff.
I'll give a slight edge to the Jacksonville O-Line because of pass protection. Neither team can run block for crap.
Gurley is way better than anyone they have. Robinson, Hearns, Lee and Julius Thomas vs. Britt, Quick, Tavon and Kendricks, you do the math.
As for the defenses, both are young and talented. The Jaguar defense is currently ranked #7 overall. We have the best punter in the league.
Then you have the cities themselves, LA vs. Jacksonville. Would the coach be a "star" type comfortable with the limelight. I personally love living here in So Cal but it ain't for everyone. Plus living in Florida isn't too shabby either. I don't know what the media scrutiny is like in Jacksonville but Fisher was eaten alive here in LA. I've heard on the radio that Gruden and his family are moving to So Cal (regardless of coaching job) and Asshole Face has a daughter that attends one of the local universities so those maybe factors as well.
Might just come down to $$$. Stan has more than Kahn but as many athletes have pointed out, there are no state income taxes in Florida.