BlackRock IT analyst vs. Big 4 tech consulting

Hi guys, I'm a newbie :) -- an undergrad double majoring in computer science and math. I don't want to be a programmer for the rest of my life. So I gave up my high pay offer from a tech firm and recently have been considering these two options:
1. BlackRock IT analyst base 70k + bonus total compensation would probably be 80k-90k. It would be good to have opportunities networking with seniors in finance industry. I could get exposure to finance and transit into finance in the future. Rotation program is good and I was put into a team where I would have a lot of interactions with portfolio managers. Work life balance is not super bad. But the idea of back office kinda annoys me!
2. PwC/Deloitte tech consulting base 60k (don't think they have a lot bonus) I kinda want to do consulting because I'm interested in business and possibly want to start my own business in the future. I also think it's an interesting job and will allow me to transit into management consulting in the future. But the pay is way too low! (The idea of me giving up an offer of 90k from a tech firm and take this just seems a bit amusing) Work life balance is bad. I will not have chance to get into finance, even though I don't know if finance would be something I'm interested in or not. Also BlackRock has a bigger name.

I'm really confused now! I need to choose one that benefits me in the long term. So starting salary doesn't matter that much. I want to get a MBA in the future. I'm not sure which option would look better on my resume and get me into a better MBA program, and will provide me a better career path of course. BlackRock bo or big 4 tech consulting?

Thank you for your input!! Please help me out! I don't know much about business/finance industry!