I have no beef with UNI. I think they have come a long long way since they first opened. Our last trip to UNI/IOAin 2010 was a disaster. Most of IOA except Potterland was falling apart, things not working or just plain shut down. UNI was worse. Rip Roarin Rocket was down, as was Mummy, Jaws, and Earthquake (some other name, but still closed). Terminator had one show that day and it had already happened, and MIB broke down while we were on it. The only good attraction was the Simpsons, followed by Twister. So, not a lot to do, so by 1:30 we left. Not to mention taking an hour at opening to get through the turnstiles, and being told my ticket were fake when I bought them from AAA and had the receipt, and had to argue enough to draw the attention of the police and management. Turns out them barcodes suck eggs like they always have. We had 3 day tickets, and did not go back to use the other two days. That is how disgusted I was with UNI and IOA. In another 5 years we may go back, but for now we will be sticking to WDW.
Back on topic, quality is relative to each person. But I have this to say about Disney, their theming is second to none. I can go to amusement parks and pay half of what I pay for a day in Disney, and still have a great time. But Disney is something different, even with the breakdowns and bad show in some areas. Disney still tops the crowd in theming, and the theming makes the parks what they are. The cutting edge technology cannot hold a candle to the classics like POTC, HM, Horizons, World of Motion, because they always work(ed). No other coaster can match BTMRR for theming, nor can any other flume ride match Splash in theming.
For years DL was left to rot, then they practically rebuilt it. Now WDW is in the same rot stage, and hopefully they will get off their duffs and fix it.