I guess if you live where it isn't hot, it doesn't matter so much, but here in the States, it's very nice to sit on the west side because the sun is behind you in the late afternoon and the seats get shady. Southwest has the best shade.
My favorite place to sit is on the side line behind the baseline or just on it and very close to the court.
The other place I like is behind the court and on the sideline.
I really prefer not to sit in the middle, but closer to the court is better than far away so, I'd take the middle if that meant I could sit closer.
I'm glad you got your tickets. I hope you have a great time.