Which loan terms for a refi

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First time refi'ng. Owe 760k on current loan. Refinancing for 1.3mm. 16 unit residential 

These are the terms offered by Lender......

3+3+3+3+3+3+3+3+3+3 ARM, 30yr Amortization- 3.625%

5+5+5+5+5+5 ARM, 30yr Amortization- 4.25%

10yr Balloon, 25yr Amortization- 5.375%

Which one folks? Thanks in advance!