Now, I am aware that the Titans just signed Kamerion Wimbley from the Raiders, but I also think they'll be looking to draft an every down defensive end here as well.
The Titans will be looking hard at both Whitney Mercilus and Nick Perry here. Mercilus had better on-field production, while Perry has better athleticism.
Those two things make it nearly a toss-up, but Perry is a better fit in the Titans' system, so I think that'll tip the scale in his favor. They could also look to defensive tackle Michael Brockers here.
As Derrick Morgan is starting to look like a bust and Jason Jones just skedaddled to the Seahawks, the Titans may need two new defensive ends, so signing Wimbley doesn't mean they won't take Nick Perry here. Perry also is one of the top players available.
Perry absolutely blew the draft out of the water, so he makes sense as the absolute best player available anyway. Besides, the Giants seem fine with having three good defensive ends on the roster, and in a copycat league, I wouldn't be surprised if the Titans steal that idea.