To give you some background on me - I'm a life-long Eagles fan who was a starting safety for 3.5 years at a D-1 level in college. I follow the NFL religiously, and have an understanding of the game that a vast majority of fans don't.
As an Eagles fan, I've found that a lot of Eagles fans are having conflicting feelings about Vick (myself included). Basically, there's no denying how well he's playing, but at the same time, as a dog lover, I find it difficult to look past what he's done - it's virtually unforgivable.
On the other hand, Vick went to prison. He served his time, and since he's been back, he's done and said mostly the right things. Is it right to hold a grudge against him forever because of his past mistakes? I dunno. I mean, what more can he really do right now to prove to people that he is sorry?
From a football standpoint, last year, he wasn't the same player he was before he went to jail - he was out of shape, slower than he needed to be, his mechanics were off, was making poor decisions... basically, he had little hope to return as an starting QB. His salary was pretty good (for a backup), and this year, it's even higher (although by no means has met his level of play this year). He looked so bad last year that I was a bit surprised when the Eagles exercised the option to keep him at such a high salary.
Once training camp opened, I saw why - Vick was back to his old form. His speed was back, his mechanics were better, and most importantly, he was making the adjustments that Andy Reid instructed him to make. The biggest problem with Vick in Atlanta was that he was purely an athlete - he did little actual training, was practically uncoachable, and he had a ton of guaranteed money. Even though Vick looked good through the preseason, he still had some classic Vick mistakes in his game - he only looked on one side of the field, he wasn't going through his progressions, etc. I still thought Kolb looked like the better QB.
Well, since Kolb went down with an injury in week 1, Vick has looked better and better each week. Andy Reid is an amazing QB coach - I have plenty of criticism for Reid, but you can't deny how much better he makes QB's. I figured the Eagles would be an 8-8 team with a ceiling of 10-6 if they got a quite a few breaks. Vick's improvement as an athlete as well as the professionalism he's displayed this year by training hard this offseason to come back in his old playing shape, by working out the kinks in his game, becoming more accurate, and by learning to read his progressions, and only run when he has an open 1st down or no receivers are open. He's playing out of his mind so far.
That being said, I don't expect Vick to keep up that level all year long - the Eagles schedule tightens down the stretch, and he really hasn't played great defenses yet. I'm expecting him to seemingly regress some, but in reality, he's just playing better teams.
So keeping all of this in mind.... do I want him to be the QB for my Eagles? I dunno. For one thing, we have a pretty good QB on the bench with Kolb. However, obviously Vick is a better QB right now, and seems to have a higher potential (although I do think Kolb has a ton of potential as well - it's just if Vick can be a great in the pocket QB and have that scrambling ability, there's no one else in the league like him). I like Kevin Kolb as a person - he's just a good guy. He's handled himself as well as any athlete, he married his high school sweetheart, he does a ton of bad-*** stuff (kills wild boar with just a knife, shoots the head off of rattlesnakes, etc), and he's handled continued mistreatment by the Eagles with dignity and class...
But the bottom line is that over the next 4 years, Vick will win more football games than Kolb, provided that he continues working hard and being open to coaching. Many people will say that Vick has "paid his dues" and will be deserving of the 70+ million dollar contract he receives at the end of this year. I can't in good conscience agree. Even a Super Bowl victory with Vick would leave a bad taste in my mouth. While I could tolerate Vick as a QB, I would honestly rather roll the dice with Kolb as my QB, and let him grow, while pondering "what could have been" with Vick. Even more importantly, I would feel that we did the "right" thing by keeping with Kolb.
Realistically speaking, the Eagles won't do that unless Vick demands a comically high salary. Unless something really surprising happens, Vick returns next year with a huge salary - the bottom line is that people will forgive and forget if you keep on winning.