Tuffcookie, we have been going to Oglebay every year since 1990 (well, we missed 1991 because DS11 was due in Dec.). We make a long weekend out of it the beginning of December, and stay overnight at Wilson Lodge (the boys MUST have room 601 since it's the closest to the indoor pool). You'll love it!
The entire resort is decked out in lights; this year they've added lots of Snoopy lights (there's even a Snoopy display outside the indoor pool, right outside room 601). Get your tickets for the trolley ride as soon as you get there - they sell them at the front desk of Wilson Lodge, $5 a person, and the trolley leaves hourly on the half-hour starting at 5:30. I can't remember when the last one leaves. The trolley driver will tell you some neat things about the light displays - this year somebody strung up the lights wrong, so the wheels on Cinderella's carriage turn backward (unless they fixed it since we were there). The candy cane wreath is awesome - the first year Oglebay did the lights (1985) a couple got married under the candy cane wreath when the temp. was only 11º. My favorite is the poinsettia wreath over on the golf course, and then there's the snowflake tunnel you drive thru. Geez, I could go on and on!! If you have time, stop in the gift shop and buy a video of the lights. They even sell a different ornament each year based on one of the light displays. I have every single one since we've been going!
If you have any other questions, let me know. I LOVE Oglebay!