Usually no scent at all. If you really do not feel comfortable without using one, then go with just a plain doe urine type scent. An estrous scent might be out of place and be a warning or an alarm to deer as would a territorial dominant buck scent.

I am a meat hunter, (i.e. a doe slayer) and do not waste my time on trying to lure in an exhausted buck in December. After 7 days of being shot at with firearms (10+ days if after the muzzleloader season in December), the Illinois deer a tad wary.

I am sure others will disagree with me, but the above is my 2 cents.

If it is early December a little doe estrous scent wont hurt. Up here in wisconsin ive seen bucks hounding the last remaining hot does the first couple weeks in december, but after that I would just use a good cover scent and focus on late season food sources. A bucks stomach will definately be driven him more than his sex drive this late in the game.