Fly-through feeder -- male and female cardinals, large flock of sparrows
Hopper feeder -- two fox squirrels, a few mourning doves, large flock of sparrows
Suet feeder -- downy woodpecker, either a northern flicker or a red-bellied woodpecker, several sparrows
I thought the large woodpecker was a flicker at first, because that is what we've had in the past. But the red patch is quite large, so it may be a red-bellied woodpecker. It's hard to see the field marks through the window at available angles. Apparently habitat changes mean fewer red-headed woodpeckers and flickers, but more red-bellied woodpeckers.
EDIT 1/14/16: I am now more strongly convinced that this is a red-bellied woodpecker. The whole top and back of the head is red, unlike the small red patch of a flicker. But I still couldn't see the belly (which is plain on a red-bellied woodpecker but speckled on a flicker).