Kido, it is completely up to you and what tone you want. The Fender Strat has historically been a single coil instrument and that was its claim to fame. Again, historically, if you wanted that single coil sound, that made surf music sell millions of records, you bought a Strat.
If you want "to play pop country music" my first thought is you want the SSS configuration, your second link. That is what is in my Strat. In fact, mine has the "Fat 50's" exactly like the Strat in your link.
I'm not sure when Fender came out with the Humbucker in the bridge pickup. It was a response to compete with the warmer sound of the Gibson Les Paul. So if you want access to the fuller tone of the humbucker then you might want to consider your first link.
I'm not sure what guitars you have now. If you already have one with humbuckers maybe you want to consider the different tone a "pure" single coil guitar is going to give you. If not, then maybe the flexibility of a humbucker equipped Strat is best.
You're not going to go wrong with either.
Guitars: 2013 PRS Paul's, 1972 Gibson ES-325 (Used by Steve on Live Lesson March 29, 2016), 2012 Fender American Standard Stratocaster, 2011 Gibson Les Paul Studio Deluxe, 2015 Epiphone Casino Coupe, Walden G740CE, 2012 Yamaha Pacifica
Amps: Fender Blues Junior III, Boss Eband JS-10, Boss Eband JS-8, Fender Mustang Floor multi-effects amp, Line 6 POD HD500X
1 2 3 4 5 6 7 8 9 10 1112 13 14 15 16 17 18 19 20
L&M The Song Hits:
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 7
L&M Blues Guitar: not started yet.
L&M Guitar Set Up and Maintenance: not started yet.
Piles & Piles of other stuff I've purchased and not started yet!