比 - Bi3 - Compare, Compared To

Sally’s 比 Pepe’s 好吃. This means Sally’s tastes better (好吃 - Hao3 Chi1 - Tastes Good. )

Another way to say this is Sally’s 比較好吃. 比較 - Bi3 Jiao4 means Comparitively.

And, not very coincidentally, you also use 比 to say 比薩 - Bi3 Sa4 - Pizza.