i use Organic Erythritol
i really dislike the way stevia tastes and have read some unintended issues with the plant. i personally have found that Erythritol is the only sugar alcohol that i feel actually takes like sugar without an aftertaste. it is granule so works like sugar in every way except browning. but like Jaesun's Dad explains it most sugar alcohols pass thru your system and are not processed,
"erythritol is actually absorbed in the small intestine and excreted unchanged through urine, so it has no side effects at typical levels of consumption." -wikipedia
here is the main page for sugar alcohols and a nice chart that shows sweetness and calories, you can see that there is clearly some different in them.Sugar alcohol
i picked Erythritol at first because i found an organic source and discovered that i liked the take better than any of the the others (Xylitol is my next favorite) i stuck with it since i have learned it is one of the few with little to none of the bloating and other side effects and that my brand comes from sugar cane rather than corn as Xylitol usually does in this country. neither are great plants for our world but corn politics and farming in the US is just disturbing to me.
and as a lady with insulin resistance, i have been really happy that i found a good thing that was so easy for me to switch too.