For most power-tool woodworkers, it's a heavy cast-iron table saw. Versatile, accurate, stable, repairable, adjustable, and powerful. Hand tool folks may not have one at all, or maybe just a little jobsite thing to rip big boards, and there's a few people who think differently and either use a tracksaw or build up a custom work table with something smaller as its core, but the vast majority of people who are "into" woodworking will have a cast iron table saw in good repair.