Which option is better?

I'm presented with two different options for this summer (between my sophomore and junior year) and I am somewhat unsure as to which opportunity would offer better opportunities for a future SA position or FT position in either banking or trading/asset management. The first opportunity would be at HSBC in either their SEC reporting group or their treasury group (I'm still unsure as to what the treasury group would be doing). The other opportunity is through mercer as an investment consultant. If anyone has any insight please let me know. Thank you.