Luck has been pretty mediocre the last few weeks but he has made enough plays to get his team to the 3rd seed and a 2nd straight playoff appearance. Ryan is still under .500 for his career and 0 playoff appearances. He's had better defenses than Andrew too.
The AFC South is easily the worst division in football this season. Houston is so bad right now they are currently the favorite for the #1 overall pick. Jacksonville is straight trash. Tennessee is not a good football team with Ryan Fitzpatrick at QB. What Luck did last season was extremely impressive, but he hasn't progressed in 2013 against the worst competition in football and that says something, too.
For what it's worth, I think Pep Hamilton is not doing him any favors and like Ryan Tannehill, there are personnel issues on that offense that make it difficult for him to succeed in spots.
But if you are holding Ryan Tannehill and Andrew Luck to the same standard, hold them to that standard. Do not simply look at the team's record and put it all on the QB. Miami's record is not simply a reflection of the QB, nor is Indy's.