Brons the mvp, but you also gotta take the previous seasons into consideration when voting. Storylines aren't the be all end all, but the are very important to voters, and they use the previous year as a reference.
Imagine if KD won the finals mvp in 2012 and was putting up the same numbers this year AND they had a better record than miami; KD would be the front runner and it would be "his turn" to run the league with everybody laughing at bron and questioning if he'd even get 1 ring with an aging dwade.
in 2011 Rose won mvp that year because he upped his game, and not everyone realized just how good chicago could be without him, and im almost certain they swept the heat regular season.
Bron lost the mvp that year cause wade basically had a 1b to lebrons 1a year, plus the media was on the bron hate wagon, and they still finished lower in regular season standings AND lost a few times to the bulls.
in 2012 KD was more valuable to the thunder then bron was to the heat, and they had a better record; voters went with bron and his stats (which i understand but didnt fully agree based on regular season)
This year i gotta go with bron. Coming off a finals mvp (and gold medal), found the balance between playing efficient with no pressure, and being a killer in clutch moments, the numbers are better than everyone elses, wades slow start + best record in east by a mile, probably nba... And KD and westbrook appear closer is terms of productivity for the team