Alvarez and Marsal TS vs EY FSO Assurance

I am currently a Junior Accounting Major at a non-target school planning to take the CPA with 2 internship offers for the following summer (and both have a reasonable chance of turning into full-time offers).
The first is at Alvarez and Marsal in their Transactions Advisory Group. The second is in FSO Assurance at EY. I am conflicted as to which one I should pick. Personally, I find TAS much more interesting and I really like the culture at both firms. However, I am worried the lack of a BIg 4 experience on my resume (assuming I choose A&M will hinder me in the future). I know for a fact that full-time A&M pays much more and the people generally like working there a lot better ( a lot of them are ex- big 4 auditors). However, if I were to choose EY I could always attempt to transition into their TAS service line.

Does anybody have any opinion on this?

Thanks!