For GaTech I was very similiar to you out of HS 2 yrs ago). I finished with a 4.0 UW and 4.0+ W. I also made a 31 on ACT but I got perfect Math and didnt do too hot on the English. Also had many EC’s (mostly sports). Despite this, I was denied. However, I only took 4 AP classes which I believe to be the leading reason I was denied. (I applied for MechEng)
I believe with your 7 AP classes (and valedictorian rank) you will make a very competitive application. I would say you’re looking good for getting in.
If you get in, definitely choose Tech especially if you want to study engineering.
Best of luck!!