Hello, all!

I'm currently an undergrad English Major/Creative Writing Minor, and I'm on the Master's track at my school. However, my school doesn't offer a PhD. program in English. There's another school I'm looking at that offers both Master's and PhD programs. My questions are:

Should I continue at my current school, get my graduate degree, THEN transfer to this other school?
OR should I transfer to this other school as soon as I have my BA, and continue my Masters and PhD. at the transfer school?
OR should I transfer to this other school as soon as I have my BA, and get right on the PhD track, earning my Master's in the process?

Basically, is there any gain to getting my Master's degree separately from my PhD? Or should I just go straight for the PhD.? I'd like to earn my PhD. as soon as possible, so that I can teach English literature on the university level before I'm ninety.

Any advice would be greatly appreciated.