Just want to throw my $0.02 in here. Sugar is still very proccesed. Its not like you can just grind up a sugar cane plant and get the white powder known as sugar.
Personally I try to avoid sugar just cuz its not only calories, but I can feel a sugar rush from it. I'll add a packet or two of splenda to things that need it for taste. Just do what works for you, there hasn't been much scientific research showing these artifical sweetners are actually bad for you. Just a bunch of ppl on the internet shouting "You'll get cancer!" Only problem is a few people get upset stomachs or headaches from them. If that's not you, no problem with them.