Which girl do I like? Which one is better for me? What should I do? PLEASE HELP. EASY 10 PTS?

Ok im a 14 year old guy going into highschool at the end of august. I just graduated from 8th grade. And for the past year, I have been in love with this girl named Samantha. I thought about her every moment of everyday. She was the reason I would get up in the morning and want to go to school. I told a friend's brother that I liked her and he told one of my other friends who pretty much spread it around the grade so everyone (including Samantha) knew that I liked her. I never asked her out because I was too afraid of what she would say. Then last thursday, I went to six flags with my friends Shane, Andrew, and Jenna. Shane and Andrew go to my school, and Shane is going out with Jenna. Jenna goes to a different school but is my best friend. But Jenna brought her friend Audrey. When I first set eyes on her friend Audrey, I knew that I loved her. Shes so pretty and cute. As the day went I found out that Audrey is amazing. She is gorgeous, shes funny, shes nice, she has a great sense of humor. Ever since I met her, I couldnt stop thinking about her, I mean she has the same personality as me (were both quiet people sometimes), we both love six flags, she just acts so cute, She has beautiful eyes, she has gorgeous hair, everything about her is perfect. Shes the most beautiful girl in the world to me. I liked Samantha, but ever since I met Audrey, I feel like she is the perfect girl for me. I think she might like me but im not sure. We went on a water ride and shane and andrew wanted me to go in front because they didnt want to get wet, and when I got in, Audrey climbed in right behind me, and when we came to a sudden stop and jolted forward, she slid forward and hit me and started laughing, she also was kinda hitting me with her knees on the ride. Then on the next ride, Andrew and shane wanted me to go with Audrey so we got on and it turned out that Shane, andrew, and Jenna couldnt go on at the same time because people who had fast pes got on in their seats so it was just me and Audrey. During the ride she was laughing and was kinda talking to me. Then when we got off and were waiting and she was telling me about how she doesnt like crazy roller coasters, and how she ped out on a ride earlier (i didnt go on the ride because it makes me p out too). Then when we met up with the rest of the group, we were walking to the next ride and I hopped up on the curb and was walking on it and was trying to balance, when I looked behind me, I saw that Audrey was doing the exact same thing as me. Then later when we were walking to the front gate to go home, Audrey asked me what high school i was going to so I told her and she got kinda excited and said "OOHH really?? I'll see you then. Im going there!!" Then on the way back in the car, Jenna and Audrey were on my phone in the back row and handed it back to me about 5 minutes later. They didnt do anything though, like she didnt add her phone number in it or anything.The thing is that both Audrey and Samantha are going to the same high school as me. And nobody knows that I like her except for my friend Aaron. Which girl do you think is better for me. I dont think I like Samantha anymore,I like Audrey. The thing is I didnt get Audreys phone number, and Im friends with her on facebook, but if i send her a message or chat, thatll be weird. And I dont know the next time I will see her. I cant stop thinking about her. Thanks:)