Because people have differing tastes and not everyone likes the same things as you?
Personally, I'm primarily a PC gamer, but I've always thought the Halo series was pretty good. It doesn't deserve the ridiculous acclaim and 10/10 ratings that get piled onto it, but it doesn't deserve all the hate it gets from others either. Though I enjoyed some of the games in the series more than others, I'd say overall the series deserves a solid 7/10. They're fun games, with solid gameplay and a decent (if not particularly original) story, presented in a well polished package.
There are definitely better games out there, but there are many more worse ones.
Personally, I'm primarily a PC gamer, but I've always thought the Halo series was pretty good. It doesn't deserve the ridiculous acclaim and 10/10 ratings that get piled onto it, but it doesn't deserve all the hate it gets from others either. Though I enjoyed some of the games in the series more than others, I'd say overall the series deserves a solid 7/10. They're fun games, with solid gameplay and a decent (if not particularly original) story, presented in a well polished package.
There are definitely better games out there, but there are many more worse ones.