Whom do I choose out of 2 men?

Okay I'm dating 7 diffrent men right now... nothing serious but i do want to get serious and i have 2 of them that im really intrested in and i dont know how to choose and let go of the other ones. I need a little help on narrowing it down to which one i want and how to get rid of the ones i really dont want. My friends say just stop accepting their calls but i think thats childish and down right rude.