1- A shy girl that opens up as you get to know her. She's very quiet when you first meet her but once you gain her trust she can be loud, confident and outgoing. Her sense of humour is great and she can always make you laugh. Her personality makes up for her flaws.
2- A loud, confident girl from the get go. She's like an open book. You'll know mostly everything about her within he space of 10 minutes. She talks a lot but is also a good listener. She has a lot of friends and tends to be good at making new ones.
3- A sexual girl. This girl can be quite sweet at times but almost every conversation seems to turn into something sexual. It might not seem like it, but she's very smart. She tends not to let her intellectual side show. She understands what turns you on and off.
They all sound like they have plus points. 3 sounds fun but won't work out long term unless she has eyes for me only (unlikely). 1 sounds sweet and similar to me being on the shy side myself. 2 would probably put me at ease the most, being a good listener is key and it not being all about her.