תנו רבנן כיצד מרקדין לפני הכלה בית שמאי אומרים כלה כמות שהיא ובית הלל אומרים כלה נאה וחסודה אמרו להן ב"ש לב"ה הרי שהיתה חיגרת או סומא אומרי' לה כלה נאה וחסודה והתורה אמרה (שמות כג, ז) מדבר שקר תרחק אמרו להם ב"ה לב"ש לדבריכם מי שלקח מקח רע מן השוק ישבחנו בעיניו או יגננו בעיניו הוי אומר ישבחנו בעיניו מכאן אמרו חכמים לעולם תהא דעתו של אדם מעורבת עם הבריות
§ The Sages taught: How does one dance before the bride, i.e., what does one recite while dancing at her wedding? Beit Shammai say: One recites praise of the bride as she is, emphasizing her good qualities. And Beit Hillel say: One recites: A fair and attractive bride. Beit Shammai said to Beit Hillel: In a case where the bride was lame or blind, does one say with regard to her: A fair and attractive bride? But the Torah states: “Keep you from a false matter” (Exodus 23:7). Beit Hillel said to Beit Shammai: According to your statement, with regard to one who acquired an inferior acquisition from the market, should another praise it and enhance its value in his eyes or condemn it and diminish its value in his eyes? You must say that he should praise it and enhance its value in his eyes and refrain from causing him anguish. From here the Sages said: A person’s disposition should always be empathetic with mankind, and treat everyone courteously. In this case too, once the groom has married his bride, one praises her as being fair and attractive.
Beit Shammai is of the opinion that words are utilitarian. Using words to describe the bride "as she is" but no more makes sense - it is simply conveying fact. Beit Hillel is of the opinion that words are so much more than utilitarian. While they can convey fact they also have the power to uplift or tear down, to instill emotions, to inspire. On her wedding day every bride is "fair and attractive".