You Da One.. mmm is kinda generic, tipical Luke production with simple beat, repetitive hook, etc. For a minute i thought he would give Rihanna something better. It's catchy, #1 material, He did his job.
Where Have You Been.. i like it, follows the line of WFL

it's like the Only Girl-S&M duet, 3rd single for sure.
Talk That Talk.. I love the Jay part, but i need to listen rihanna's parts to make a judgement.
Cockiness.. it's one my favorites so far, i could be one of those amazing tracks treated like fillers tho.
Birthday Cake... mmm sounds like peacock.. and that's not a good thing.
We All Want Love.. i love it ! is very different from the previous tracks and i like the vibe of the song.
Drunk On Love.. cute, nothing outstanding.
Roc Me Out.. calling it Rude Boy part 2 is an offence. Rude boy had that reggae feeling, wich i don't find here. Once again Rihanna influenced with the electro sound
Watch n' Learn.. One of my favorites.. it's fresh and different.
Farewell.. sound great, i'm not here for ballads, to be honest.
I'll wait for the full tracks, but i know my opinion won't change that much.

edit: wrong thread lol * goes to the previews thread*