How To: Insult WITHOUT Being a Tard

So you're at the point where you've decided you want to make fun of a person's taste/opinion simply because you don't agree with it. Congratulations, you're a ****** person. But the question is, are you going to be smart about it, or come off sounding like a complete idiot who has no idea what he's talking about? Well it's quite simple actually, let me break it down

DON'T:
Make statements that everyone knows are blatantly false. This will make you look stupid.
"Bud Light is not beer."

DO
Use a combination of opinions and true facts. You're still a dick, but not a dumb dick.
"I think Bud Light is ****** beer."
"Bud Light has way less alcohol than the beer I usually drink."
"Bud Light is so watery it's not even worth drinking."