i don't think any defense is the best way to the superbowl.i prefer the 3-4 defense,but a 4-3 or 3-4 or cover 2 can all work if you have the right players playing in it.also it helps if the teams you are playing that season have the proper offense that you are attacking them with your defense.when tampa beat the raiders with the cover 2 the deck of cards were stacked.the cover 2 was built to stop a west coast type offense.that is what the raiders were playing with that year.it also helped that coach chucky was the raider head coach a year earlier.i know chucky is a offensive coach,but he still knew that team inside out to beat it.when the bears won with the 46 defense they were just nutty dominate,but had they played the "fish" that season in the superbowl they coulda been beat.the fish were the only team to beat them that season.well i hope we beat a west coast type team in the superbowl in the next few seasons being that is our base defense lol.go bills!