I can't comment definitely on either consulate, but the difference should be negligible. Much of your visa's processing time will be spent in the USCIS and NVS.
Feel free to email me if you have additional questions or concerns.
Franklin Tzeng, Esq.
This response is not legal advice or opinion and should not be construed as such. This response does not create an attorney-client relationship. Franklin Tzeng, Esq. is a practicing immigration attorney in Alhambra, CA. For more information, please visit facebook.com/franklintzengesq (Facebook Page), franklintzeng.com (Main Page), or franklintzengesq.com (Immigration Law Page).