Which teams switching defenses (3-4 to 4-3 "Viceversa") next year you think will be more successful?

It is between the Texans and Broncos. The Texans are going to have Williams at end and JJ Watt at the other end. But their OLB situation is bad. The Broncos have alot of issues too. Who knows who the D-tackles are going to be, but their ends should be Dumervil on the right and Agers on the left. I am thinking they are going to put Von Miller at OLB. With that said I am going to have to go with the Broncos. The Texans secondary is just terrible, while the broncos with moore from ucla coming in at FS and Daemons at SS along with Champ and the other CB (can't remember name) should come into the season with one of the best secondaries in the NFL and a decent front 4 that should be able to produce some pressure on the QB.