What girl should I date out of these two?

Ok I got a choice of two girls that I know I can date if I really want to. ( at least I think :d). The first girl I knew back in 8th grade ( good times ). I didn’t date her back then cause well she was really big. She smaller now ( yea I know that was wrong of me). And she looking good. And she had the biggest crush on me in 8th grade. Every day she had something new to say to try to get me to date her but that was in the past now every since I met her again a lot of the time I alway walk her to her first hour class and we just talk. Then the second girl. I met her at the lunch table one day. We cool and all that. I make her laugh easy ( but I make everyone laugh really easy also :d). Lol today I told her she had a big a**. Which I didn’t planned on her hearing me ( epic fail seriously). Cause she was walking away. ( I felt dumb). So I did what everyone else woulda did. I just gave her a big smile. ( she smile back).

So you know. I got my choices here. Am a new man now so once am in a relationship there no cheating ( ill try my best). So I want to be 100% sure this is the person I want to date. Both of them is pretty. One mexican and one black. They sorta act the same way. And both of them am not really shy around. Like I am most peoples. So I think I can have a good relationship with them.

So if you was me. Which one would you pick? Cause I don’t know right now