I go back and forth on who I want more -- Eifert or Austin. In another thread I asked what was more rare, the redzone monster that Eifert should become or the big-play threat that Austin seems destined for. Right now, the Dolphins would seem to need Eifert more. But I'm still not sure who I'd rather take.
With Wallace and Austin, Miami would drive defenses crazy. Austin is more that just a slot guy, but even if that's where he makes his living it sure has been a big part of New England's success with Wes Welker. And Austin has that toughness that I like.
As far as Eifert goes, I think he will become a complete tight end once he works on his blocking and certainly should be a quarterback's best friend.
At the end of the day, I believe the Dolphins go in a different direction with either a corner (maybe Trufant) or a pass rusher (Werner, Mingo) taken.