Work experience in Paris vs. LLM at the LSE

[Susy]

Hello! I have completed a double degree in English (LLB) and French Law (undergraduate and Master 1) at the Universities of Leicester and Strasbourg respectively. I am now doing a Master 2 at the University of Paris I Panthéon-Sorbonne. I have an internship lined up with an English headquartered international law firm in Paris for July-December 2023 and an LLM at the LSE. Thus, I now have to choose. Ultimately, I wish to obtain a training contract in London at an international law firm. Which would you advise is the better option? They both have pros and cons and I have heard that law firms do not place too much importance on work experience abroad as much as just a degree from a reputable university in the UK.