BB Ops Vs Big4 Consulting Vs Credit Research

Hi guys, I have always appreciated the WSO community for the advice it gives to students. If I had not followed certain tips I would never have received any offers.
Today more than ever I need the advice of people who have been in the industry for years. I am a MSc Finance final year student from a European semi-target school (10th to 20th place in the FT ranking), I received some offers: full time in Wealth Management Operations in a BB (GS-JPM-MS), a full time in risk advisory for funds in a Big4 and an internship in Credit Research in a European regional bank ( very low conversion rate). My long-term goal is to be in the buy-side as PM or product specialist in wealth or asset management, which of these offers can help me achieve this goal? I am already preparing the CFA level 1, I'm from Europe and I have just turned 26 years old, no experience in finance and I am afraid that due to my age it will be very difficult to find other opportunities after my internship in Credit Research.
I would like to thank in advance all those who will help me to clarify my ideas.