tax vs high interest rate

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I don't know if these questions belongs here or even how to ask, so please bear with me.

I can get an interest rate of about 6% for a mortgage for a house for me. House " A" is a fix-up, and it occured to me that the tax advantages of using it as a rental for a year or so might outweigh the interest rate benefit of renter occupied. This house needs $20-30,000 of repair.

House "B" would require a higher mortgage amount, and may need some work, but would essentially be turn-key.

Are there greater tax advantages to overcome the higher interest rate of a rental instead of either being owner occupied? (Sorry, not sure which way I'll go yet.)
Thanks,
ofgift