It's a hard decision because nobody knows the future.
Regarding physical intimacy, it's better to wait until the guy takes the inititive. Or if you feel the strong attrication to one of them, then give some hint to that guy. I would recommend both agree to exclusive relationship, meaning neither one of you will date other people. But this may not be good for you since you think you have not found the right guy. Also it's for your protection to make sure he is safe, I mean no STD.
Just be sure that you are ready to take this step?
In the meantime, enjoy your dating. It is more exciting.