Forgive my ignorance, but what's so horrible about Logan? My experience is limited, as I've only arrived there once, and haven't yet had reason to depart from there. I liked the free shuttle they have from the airport to the Blue Line T.
Ft. Lauderdale airport is pretty good, but the quality of food varies considerably from one terminal to another (JetBlue: Heaven; USAir: HELL). Charlotte has a gorgeous airport; it felt like a trip to the mall.
Airports I hate: Miami (too much BS, too expensive), Philadelphia (the place looked like a real dive, the terminal was filthy, and the food sucked in addition to being overpriced).