LGA is also my favorite NYC airport, hands down, with the only exception that the train access from Manhattan is not nearly as good (7 train to Q surface bus). Of course, since you are not a Manhattanite, I can understand how this isn't an issue for you.

The LGA Central Terminal was renovated in the 90's and has one of the best food courts of any airport in America.

The US Airways terminal is also pretty new and eerily under-used. The plus side is it's very pleasant and easy to navigate.

My least favorite terminal is DL/NW, which can be a madhouse early in the morning and again around 7:00 PM, but it's OK, too.

And while LGA is an NYC airport, it often has the feel of a small-town airport, If you avoid the crush which occurs in the mornings and around 7:00 PM every it's rarely very congested.

Please note that, if you're flying jetBlue, they fly to FLA out of LGA as well.