Which person would you choose?

So you're stuck having to choose between 2 people who you have known 1 month only!!! Ultimately you're thinking long term, but there is still a lot of learning to do about each other considering it hasn't been very long for either one. Who would you choose?? Please explain your reason!!  :)
Person A:  You get along well with, have many common interests, mesh well mentally and emotionally.  You really enjoy their company, however they kind of annoy you at times because they seem insecure and don't have much of an opinion about anything. They let you have your way with everything. There is no resistance, not a challenge what so ever. Oh and the sex is just "okay".  
Or... 
Person B:  You 100% have an amazing physical chemistry. It's extremely passionate and sexy everytime you're together.  You can have good conversation with them, but do not have very many common interests aside from the sex.  This person doesn't seem to open up very easy and makes it somewhat difficult getting to know on a deeper level.