ORIGINAL: BOWHUNTERCOP
The bear outfitter I use says the fall hunt is better, and he does both. Spring the pelts are thicker and fuller, the bears hit the baits better, but the bugs are terriable.
Fall, evening hunts are cool, pelts are good, bears hit the baits not as good as spring, NO BUGS or not as many as in spring
He's right about spring pelts being nicer. It's up to you I guess. If it were up to me I'd go in the spring to avoid deer season and be able to hunt year round kinda.