ESET + MBAM Free, EEK (free) or ZAM Paid
It's likely that if you combine 360 and ESET it will cause issues eventually.
ESET specifically states not to run another antivirus alongside their product. In fact, the ESS 8 installer prompts the user remove all traces of any existing or prior AV.
I know from first-hand experience ESET does not get along well with other AV ... even Emsisoft Anti-Malware which is optimized to run along side an AV if the user so wishes. However, there is no need from a security perspective.
Just choose one or the other.
Either will be all right...