I would understand if Miami went offense with their top four picks, but I'm with you on Collins.That is why I am torn about what to do at #18.
I think Darrisaw will be there and I would take him and move Hunt to RG.
But if i can get Davis at #36 I could leave Hunt at RT and put Davis at RG allowing me to go a different direction at #18.
Then maybe Collins makes sense assuming they go WR with the early pick wherever it ends up being.
That #18 spot is so interesting. Tucker, on USC, is another player I could see Miami taking at #18. Very versatile, although probably fits better at guard.
The Dolphins also have the ammo to trade back into round 1 if someone they like is falling.
That's even more likely if Grier is able to trade down from #3 and get another high #2.