Very few beers should be hazy, white beers and wheat beers (unless Krystal) for example. Generally most beers, brewed with good brewing technique, should/will be bright. Hop haze is unavoidable in beers brewed with massive amounts of late hops, unless you resort to filtering, although the use of a 'chill haze preventer' will reduce that level without adversely affecting the beer flavour.
Beware brewers that say "Yes it's hazy, it's supposed to be that way, it's craft!!" for they are snake oil salesmen, pedalling an inferior product brewed with a lack of care and knowledge!!