We have flown out of Syracuse for our last two trips and LOVE the airport there. We are closer to Kingston than we are to Toronto, so its a shorter commute for us than driving to Buffalo, and its an easy drive (no traffic and quiet roads).
Syracuse is a tiny airport and so simple to navigate. Lots of park and fly options nearby. Not alot of food choices right at the airport, though, so that's something to keep in mind.
This coming trip, we are flying out of Buffalo for the first time (we couldn't get reasonablly priced direct flights from Syracuse

). Its a longer drive and we have to deal with the Toronto traffic nightmare, but the cost savings was substantial (more than $400 compared to Syracuse). We are interested to see how the two airports compare.