I really enjoy Niagara-on-the-Lake. I've been there a few times, the first being during the summer touristy time. Maybe I was wearing rose-colored glasses, but I still had a blast.
The second time was much, much better since we went early in the year (April?) and it was decidedly less crowded. There are some really good restaurants in town and then there is the Shaw Festival and all.
I'll have to consider Board-o's info about the outlying areas being better when we visit there next...
www.vinocellar.com -- Mm-Mm-good