I don't think of WDW as a place for going on rides as much as a place to be entertained. The rides are secondary and I do like many of them. However, I'm not big on "thrill" rides. That's just me, though.
I had almost forgotten about the Swiss Family Tree since it does tend to be forgetable. See it once, well that's nice, no lines... move on.
Small World is undergoing a long-overdue rehab and I hope it's going to be much better. It was pretty "high tech" in it's day, and still entertaining unless you happen to get stuck for 45 minutes with the music still going.
I was surprised to see all the votes for Test Track and Mission Space. We've been on Test Track a few times and waited in line for way too long once with pounding music(?) blasting. I think what we liked most about it was finally getting away from all the racket. I have to agree with this being high on the list. It replaced a very entertaining attraction, which only matters if you like being entertained.
We've yet to go on Mission Space and are not sure if we'll even attempt it this October. Still another ride that replaced a popular and entertaining attraction. I would have rather seen Horizons updated.
One of my all-time disappointments was the first revision of Imagination. That used to be the first place we headed when it was big on Figment. It really set the mood for us. The more recent revision is better than the last, but still not as good as the original.
I think thrill seekers would be better served by an amusement park where there is a much better chance of recycling your lunch. Personally, I prefer being entertained. I guess I'm just old and boring. I even like a shady bench and some popcorn! I know... lame...