W's on Transcript

I have a serious question. I’m thinking about dropping my communication class and taking a W on for it instead. I already have 5 W’s on my transcript which is horrible, but eventually replace 4 of them (completed 3). If I drop communication I will have 6 w’s. Currently my GPA is 2.7 I signed up this semester with 18 units. If I really do drop communications I will complete 15/18 units which is a B grade for this fall semester.

Do you know anything about these W’s affecting me when transferring and if I do apply to Grad school will it affect me? I’d like to know what you think.