To [bride,] my beautiful bride.
Guests could go from a festival themed wedding one weekend and a traditional do the next and still be regaled by almost the same speech.
If you go into a long story about the two of you, it might bore the guests.
Again, recounting specific stories here really eats into the words, and I would only ever use one if it had a killer punchline. Remember to ask your wife if she wants to thank somebody and ensure you speak on behalf of both of you. Ladies and gentlemen, please stand and raise your glasses to my wife, Sue.
Love does not consist in gazing at each other, but in looking outward together in the same direction.
Marriage, of course, is a big deal. I cannot believe that I am yours and that you are mine, but I am so happy for it.
You did an incredible job of getting [bride] to the church on time. I hope to bring you continuous laughter, joy, and comfort as we embark on our married life together.