The best way to write page names with more than one word

I usually make my pages names like this:

site.com/word1-word2-word3

but I have just seen a site using this:

site.com/word1+word2+word3

is that a good way to do it?

I want your opinions...

 

i prefer this one: site.com/word1-word2-word3

 

thanks. thats what I thought was more normal.

 

even i also prefer word1-word2-word3..
word1+word2+word3 is unusual,,

 

Thanks.I'll try it anyway.

 

huh? you didn't ask a question.