Their DB's are better than ours... Rhodes, Smith, and now Waynes give them a solid core. We've lost Williams, and have no idea what to expect outside; Smith is better than both Burnett and Clinton-Dix, but both of those guys are okay. Overall, yes, the Vikings DB's are better than ours.
The Vikings are better at RB, TE, DL, and probably OL. That's a lot of positions to be better at. Barr is an ascending player at LB, and they drafted Kendricks.
Where we outpace them is at QB and WR - and since this is a passing/QB driven league, that is enough for us to be overall better than they are.
It's not like the differences are glaring - except at QB and WR where we have a distinct advantage; and at DB where they have the advantage. I would also say there is enough of a gap in talent between the DL's that the Vikings have a pretty good edge there too.
Yes, the Vikings have a good amount of talent.
The last time we played them, we only beat them by a FG - and that was without AP.