I think also you need to consider what your final goal is. If you need a BSN for whatever your final goal is, consider that you will be going to school for years longer. I fear for my accelerated BSN counterparts though because I don't know how they can possibly feel prepared after only 3 semesters of nursing school. I'm terrified with 4.
Maybe a good idea would be to research and compare, line by line, what the differences are. Make lists! How are the NCLEX pass rates for each program? How much longer will it take you to get a BSN if you stick with ADN? What is skipped or condensed to make the BSN accelerated? (For my school, they combine peds and maternity, and then psych and community, so that they get half the time in each specialty. That wouldn't work for me, since I am far more interested in those things than med/surg, which the ABSN program gets a full 2 semesters of along side the traditional students.)
The ABSN sounds better to me on paper, but you have to decide if the end result will give you what you need for your educational and career goals.
On a side note, if you do decide ABSN, perhaps stay in the ADN program for the remainder of the semester. You've already paid for it, and it will give you a jump start on the ABSN program. Maybe it would actually take away some of the gaps that would exist between the two. But you might want to keep it to yourself that you're leaving the program because I can see the instructors being very unhappy with your choice.)