To me, thrilling is something that get's my heart pumping and the addreneline flowing. DB, MF, TTD, The Beast, etc. are all extremely great, fun rides and I love rollercoasters probably more than nearly everyone my age. But rollercoasters don't get my heart pounding. They make me happy and laugh, but I don't get that "thrill" that I used to get when I was 8 years old riding rollercoasters..
WindSeeker filled my need for something thrilling! To me, sitting on a tiny little seat bumbing violently from the wind nearly 300 ft in the air on a brand new ride is 100x more thrilling than any rollercoaster I've been on since I was a little kid. There's just something about Drop Tower and now WindSeeker that makes those rides worth my time. Don't get me wrong, I'd ride DB or The Beast before getting on WS, but I, without a doubt, find WS a more terrifying ride than any of the rollercoasters at KI.
I've been on it 3 times now.