ESPN analyst Joe Theismann answers five key questions after NFL Week 6:

What impressed you most about the Dolphins on Sunday night?
The Miami Dolphins definitely looked impressive in their 24-22 win over the Denver Broncos. What impressed me most about the Dolphins was their poise on the road in a hostile environment. I was also impressed with Miami's persistence in running the ball.

	Mare

Actually, both teams were impressive. This was an exciting, back-and-forth battle between two of the NFL's upper-echelon teams -- in fact, the two best teams I've seen this year. These teams have great individual stars who make plays, and they possess great balance on offense and defense. They also have great kickers, which was evident Sunday night when Jason Elam kicked a 55-yard field goal with 45 seconds left to put Denver ahead 22-21 -- only to see Olindo Mare kick a 53-yarder with six seconds left to win it for Miami.

This was the most exciting regular-season game I've ever seen. Last year's Super Bowl was one of the best games I've ever seen overall, because you kept waiting for the Rams to break out. But the Patriots hung in there and came up with that clutch end-of-the-game drive and the game-clinching field goal.

But this one ranks up there. Sunday night's Dolphins-Broncos game was a 12-round heavyweight fight in which the boxer who threw the last punch won. It was like a "Rocky" movie, and the Dolphins were Rocky.

I was impressed with something else Sunday night -- and allow me to toot the horn of ESPN's "Sunday Night Football" team for a moment. Our camera crew recorded both Elam and Mare in pregame warmups kicking 60-yard field goals. That was tremendous footage to have at the end of the game to build the drama. And it represents the best of who we are as a broadcast team.

People hear Mike Patrick and Suzy Kolber and Paul Maguire and me as we describe and explain the game. But the pictures made the telecast Sunday night. The excitement, the proverbial thrill of victory and agony of defeat -- all of it was captured with exceptional quality by our camera crew.

Do you still like the Eagles as the NFC's team to beat or has another team earned that title?
I give the edge to the 5-1 Green Bay Packers as the team to beat in the NFC right now. But the Tampa Bay Buccaneers and the New Orleans Saints are the other two 5-1 teams in the NFC. And they're both serious contenders for the top spot in the conference as well, along with the Eagles.

The Eagles aren't getting the pop from the running game that they need. When your QB (Donovan McNabb) is your team's leading rusher, you need to work on the ground game. This was a bye week for the Eagles, and guess who they face next week? That's right, the Bucs (in Philly).

The Bucs' defense has been great, while the Saints' offense needs to do a better job in the red zone for New Orleans to become a dominant force.

	Favre

Overall, in a one-game scenario, give me the Packers. They went into the home of the defending Super Bowl champions Sunday and completely outplayed the Patriots, winning 28-10. Their young defense has been superb. And the offense still rides on the formidable shoulders of Brett Favre. RB Ahman Green has been a huge help to Favre this season.

Should the Chargers now be taken more seriously, or is it still Oakland or Denver's division to win?
I thought the San Diego Chargers should have been taken seriously when Marty Schottenheimer was hired as head coach. Now, at 5-1 and in first place in the AFC West, the Chargers should definitely be considered a threat.

Oakland, after its 28-13 loss to the Rams in St. Louis, is now 4-1 and in second place. Denver drops to 4-2 and third place after Sunday-night's loss to the Dolphins. The Kansas City Chiefs are at the bottom of the division with a .500 record (3-3).

I see the AFC West as a tossup right now -- it's too close to call. Remember, there are only two wild cards now (with the four divisions), which makes winning your division that much more important. There's plenty of football left, that's for sure.

The Chargers have plenty of upside. QB Drew Brees and RB LaDainian Tomlinson are in just their second year, but their youth is not a negative factor at all for the Chargers. The veteran presence of Junior Seau gives San Diego stability and leadership.

Do you think the Giants or Cowboys can establish enough consistent offense to challenge for a playoff spot?
Right now, no -- it doesn't look like it. Both teams struggle too much on offense.

Still, to me, the Cowboys are the scariest team in the NFL. They're able to stay close with good defense, and then you never know which offense will show up. Head coach Dave Campo has done a terrific job with the Cowboys. After Sunday's 14-13 win over the Carolina Panthers, Dallas is now 3-3, tied with the Giants for second in the NFL East (behind 3-2 Philly).

The Cowboys have been able to regroup since that embarrassing season-opening loss to the Houston Texans, which doesn't surprise me. That was a no-win situation for Dallas. The Texans can be tough -- they were beating the Bills by a TD in the fourth quarter Sunday before Drew Bledsoe worked his magic. I expect Houston to rain on someone's playoff parade as the season progresses.

As for the Giants, they fumbled it away and threw it away Sunday vs. the Falcons. The Giants need to minimize their mistakes, and QB Kerry Collins must make better decisions. Their offense revolves around Tiki Barber and making plays downfield, which is something they're not doing well right now.

A game analyst for ESPN's Sunday Night Football, former NFL QB Joe Theismann won a Super Bowl and a league MVP award. He reviews the NFL each week for ESPN.com in Cup o' Joe.