Having trouble selecting a motherboard

[PeppermintFangs]

I've recently decided to build a gaming PC with the budget of $600. Although I have picked all my parts (including the motherboard), I try to check the web every day to make sure I've made the right decision. This is specifically hard when I look through motherboards since I don't know much about what's good and what's bad.

I've chosen this processor (which proves to be the best option for me): http://www.amazon.com/AMD-FD6300WMHKBOX-FX-6300-6-Core-Processor/dp/B009O7YORK/ref=sr_1_1?s=pc&ie=UTF8&qid=1434079595&sr=1-1&keywords=cpu&refinements=p_36%3A1253505011

These are the three motherboards I've been considering. Can you tell me the pros and cons, and or recommendations for other compatible motherboards? Please don't recommend anything over $100!

ASUS M5A97: http://www.amazon.com/dp/B008V9959O/ref=psdc_1048424_t3_B00F5R9O46

Gigabyte GA-970A-D3P: http://www.amazon.com/dp/B00DJ3DWFK/ref=psdc_1048424_t2_B00CX4MUCC

Gigabyte GA-970A-UD3P: http://www.amazon.com/Gigabyte-SATA-6Gbps-Motherboard-GA-970A-UD3P/dp/B00F5R9O46/ref=sr_1_1?s=electronics&ie=UTF8&qid=1434128197&sr=1-1&keywords=ga-970a-ud3p

Thanks in advance for your help!

 

[Suztera]

If you can get the rebate, this is a good high end motherboard :
http://pcpartpicker.com/part/gigabyte-motherboard-ga990fxaud3

Other option is this, it has a M.2 slot if you ever need to use it and is good for overclocking. It's a slightly more recent 970 motherboard :
http://pcpartpicker.com/part/asrock-motherboard-970performance