SAO was pretty terrible, but there are plenty of worse things out there. Probably the worst thing I've ever seen was Chaos Dragon: Sekiryuu Seneki. I watched it as it aired during the Summer 2015 season. It was torturous to watch.
Edit: those of you who actually enjoy SAO need to watch something good. Yes, the first half of the first season wasn't all that bad, but everything after is complete trash.
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I found Freezing and High School of the Dead to be a bit distasteful to me. Yeah, cool, thanks for showing me a panty shot. What the -blam!- do you expect me to do? Fap? You just killed the girl by having her eaten alive or brutally murdered/injured her. Is that supposed to be a turn on? No? Then why the -blam!- are you showing me her panties?