Six Flags Over Texas - Nope. I enjoyed it many years ago, and even had a season pass for a couple of years. But I hope to never have to go back now. I don't like roller coasters that much anymore, and I don't like dirty, either.
I agree, it has gone down. We didn't take a big vacation this year so I bought season passes. We go for maybe 2 or 3 hours then leave. It's nothing like it was when I was a teenager!
I live near Cedar Point and I enjoyed it more when I was a child. We actually get free tickets every year but I tend to skip it because it seems so rundown compared to Disney.