ive used a delta for the last few years and have had good results. i prefer to use it as a doe. i think that, like people, not all deer dominant or not are lookin to fight but i think they all want to........well you know. i think the greatest advantage to a decoy is, like jph said, focusing the deers attention away from you. i also agree that does and smaller bucks can tend to be wary of them.
"please join the N.R.A. as well as your state rifle association! these are critical times for ALL gun owners. Be informed, be active and stay vigilant"