Graduate or Apply for SA 2018?

My background - I am a rising senior at a non-target (Iona College) with a 3.6 cum, 3.7 major GPA (Finance). I am entering my 3rd year but am a senior because of excess credits and am able to finish a 4-year program a year early.

Currently, I'm interning as a Finance Project Managerment intern at a well-known CFO Advisory/Consulting firm in NYC. In the past, I have interned at a PE boutique (a division of National Securities Corp.) and as Investment Operations intern at a regional boutique (RF Lafferty & Co.). I had one superday for a DCM Analyst position at Credit Agricole CIB and I must have interviewed well in the earlier rounds because I was probably the only non-target there. Unfortunately, I didn't get position and I accepted the role I am at currently.

So graduate in May (which would be a year early) or stick it out an extra semester and apply for SA? Which I'd still be graduating early, but in December.

I am now entering my senior year and am in need of some advice. Grad school is likely although I am unsure when I will go (gap year or 2 or directly after UG) and my top choices currently are Baruch, Pace (MS/MBA in Investment Management program), Fordham, and NYU.

Thanks in advance!