The Colts are trying to add mystery to the first overall selection in next month's NFL Draft, but those around the league believe that Andrew Luck is the clear-cut choice. That would leave Heisman Trophy winner Robert Griffin III for the Redskins, who traded up with the Rams for the second pick. Eight NFL coaches and executives were polled at league meetings Tuesday and all of them said they believed Luck would and should be the top pick. "Luck is just a safer pick," one AFC executive said. "They are both productive, high-quality kids from great families. You can't go wrong with either one. But if you're asking me about whom to take, I have to go with Luck, especially if you're Indianapolis after what they just had with [Peyton] Manning and the awful season they went through. "Get a guy who you know can play right away. At worst, Luck is going to be a good player who can come in and run the offense from Day 1. ... Griffin might end up being better, no question. He's an amazing athlete. But the learning curve with him is going to be a little longer because of the things he did in college."