When it comes to dividing resources, everyone wants the biggest slice of the cake. However, there are many synonyms you can use to express the same idea. You could say the largest portion or the lion's share, emphasizing the fact that it is the most significant part. Alternatively, you can use the phrase "the biggest piece of the pie," suggesting that everyone gets a slice but some slices are bigger than others. Another option is to say the major portion or the bulk, referring to the majority of something. Whatever term you use, the idea remains the same: everyone wants to come out on top.