Last week I went to the Lake George RV Park. It's south about 4-5 miles from the actual lake and town. Every site could accommodate me with my toad. I have a 45' and pull an H2. Every site has full hookups with 50amp service. Shuttle bus to Lake George and plenty for a family to do. Not satellite friendly but free cable. Wifi is extra. More fivers than anything else.
Slightly pricey but well worth it. Has a 9.5 rating.
If you cannot get a reservation online, call. Plenty of spaces were available even though I could not make a reservation online.