I would say yes. I don't consider more than one of my friends to be my best friend, but I think it is possible to have friends you like equally, and thus have best friends rather than just one.
Do I need a reason? Fine. Because if you say he/she is your best friend, therefore he/she is better than all the rest of your friends, and you can't have 2 that are better than all, cause then who would be better out of them?
One out of two do not need to better than the other. They can be equally bad or good.
Yes, 2 things may be equal, but doesn't that make the term 'best' nothing then? If you have 2 'best' things, what's the point of best? You would need to use 'better' as in,
"They are my best friends" is a perfectly sensible sentence.
Yes, 2 things may be equal, but doesn't that make the term 'best' nothing then? If you have 2 'best' things, what's the point of best? You would need to use 'better' as in,
"I have 2 better friends"
They'd be more important to you than the rest of your friends, thus being your best ones.
I wouldn't apply the term better to a friend. "Oh yeah, she's the best friend I have, much better than the rest of my friends." That sentence seems wrong to me. (Note: English is not my native language. If that sentence would be perfectly normal to say in an English speaking country, then ... well then I'm confused, but okay.) When you say "best" friend, I see it as a way of labeling that you're closer to that one, not that they are better than the rest. You're just more attached to him/her. And I don't see why you can't be equally attached to two different people (though probably not in the exact same ways).
Much as Xrunner stated in the first reply, if they are indeed your 'best' friend, it would indicate that they are 'better' then all of the others.
I qualify people I know as family, friends, or acquaintances. All of my 'friends' are what could be considered 'best'. Otherwise, they're just people I know.
Yes. I think some of your friends have different qualities so one might be the most fun to be with, but another might help you with all your hard situations so they are "best" in different ways.
If you like 2 of your friends equally much why don't just call them good friends or 'better' friends though better would be kinda retarded in my language.
GamesArmor stated the definition of best:
the person who is most outstanding or excellent; someone who tops all others