ABS is printed at a higher temp than PLA, and is more resistant to melting if you use it as a coaster under a hot cup of coffee, or if you leave a gadget on the dash of the car in the summer.
It stinks to print, it warps and cracks if it is not kept warm enough during the printing process, and basically has a lot of quirks of it’s own. Also, if you don’t clean leftover PLA completely out of the nozzle before taking the temps up to ABS printing temp, you’re going to carbonize the PLA in the nozzle and eventually reduce the diameter of the opening or cause a clog in the nozzle.
PETG on the other hand is a pretty good higher-temp filament. Doesn’t warp, doesn’t split, doesn’t shrink much, doesn’t stink to print, doesn’t require an enclosure. (Still need to clean that nozzle before switching to printing it though.)
Everything you never wanted to know about 3D filaments.