Transferring from small liberal arts school to big public school

I have been at my school for a month now and am not very happy with my decision. The school is pretty and i have found a good group of friends but as a whole the people here are not for me and im not happy with my decision to choose a small liberal arts school. i have the option of replying to spring admission at a larger university by nov 15th and am highly considering going there next semester. Im very conflicted because i like the group of friends ive made here and feel bad leaving but I just cant see myself here for 4 years. I want a school with fun sports and in an area with more around it. I have also not been very impressed with the academics as a whole here or any of my professors. The opportunity to go to the larger school in the spring is such a good one to have and i know i would love it there, especially because the school has spring rush as well so that would be helpful. I know I want to leave but I feel bad as im getting close with some of my friends here.