You don't look at head to head matchups and say one team is better then the other simply because they win the head to head matchups. Look at Miami having a winning record over the Pats during the last decade, the Pats were clearly the better team but Miami just matched up well against them.
Many reasons, the Bills have struggled and barely beatten some very bad teams. It took 4th qtr comebacks and the Bills to get into the spread offense and the defense to play prevent before Trent could move the offense. The Bills running game is none existent and their Defense is anything but scary. Also, when the Bills are winning, Bill fans come here and remind us they're team is winning so why does it bother you if I bring up how the the winng is hardly impressive? Am I lying? Am I making things up? Nope and nope!!! You really, really really need to learn to accept the fact that your team is not a great team and you also need to accept that others have their own opinions and are allowed to express them.
The scheduloes are determined by the previous seasons records not the season being played. If a Team goes 16-0 in 07 doesn't meant they won't finish 16-0 the next. So who cares how a team played the year before it has nothing to do with how a team is playing the following year.
You also love to act like wins are wins, well they're not. Sure if you get into the playoffs anything can happen, but that only matters if you actually get into the playoffs. It's far more critical that a team is playing well in the last qtr of the season then it is in the first qtr. So while I'm sure you're trhilled the Bills are 4-1, it won't mean squat if they don't make the playoffs and the playoffs are a long way's away. The Bills will have to play a whole lot better if they hope to have a chance at the playoffs, cause teams will not allow the Bills to come back every week.
