This was a great episode!
What really hit home was how the episode showed that through a spark of fate, you can meet the one you were meant to be with at the most unexpected time and place. Honestly, I would have picked Lauren if I was Cory.
It is such a rare event for two people to connect on the level that they did; spending all night just talking and truly understanding each other - it is a special and very rare occurrence. While Topanga is a good girl, I never got the feeling that they shared the same connection that Cory and Lauren did on that night.
If you find someone that connects to you in the way these two did that night, you don't walk away, you don't pass it by, and you don't let her go.