Dan,
</font><font color="blue" class="small">( What the stove seems to like best wood size wise, and we just moved in at the first of the January, is smaller wood with the width of the wood being no more than three inches. In a couple of hours I split, and loosly stacked about a half a cord. The stove does not take long pieces so the wood has to be smaller which splits easier.
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If the wood is just wet, three inch splits shouldn't take long to dry. It seems like water will leave the wood a whole lot quicker than sap.
I think that you are on the right track switching to some of the smaller diameter logs with the bark still on. If they've been down for several years and not growing leaves, I can't imagine that they are still green. If, however, they are still green it would be better to split them in the spring and stack them for next winter. You'll probably be able to tell when you cut them to length. Seasoned oak is considerably harder to cut than green oak.
Do you have any dead standing oak with the bark off? If they aren't hollow, they're usually pretty dry inside. The wind removes what little moisture they pick up when it rains or snows. Be careful of the dead limbs in the top if you decide to drop one.
Let us know how you make out.