Well, I can't say about anything else, but A&W on tap is much creamier and richer in taste, almost feels thick in your mouth, and it's very smooth.

Bottled or canned A&W is thinner in flavor and usually has a bit of a bite from the heavy carbonation. On tap is very different in taste. Even my kids noticed the difference the first time we took them to and A&W stand and tried it.

Gale