I started doing that comparison count seven or eight years ago staring at the four guidemaps on the plane rides back from WDW, and it is shocking how close the two properties are when it comes to the amount of rides.
I think in this exact year under the current circumstances where WDW has closed Snow White dark ride and before the Mine Train coaster opens, with four new rides opened last year at DCA, that Disneyland Resort currently has more rides than WDW Resort does. When the Mine Train opens in early '14 they might be even again, but I'd have to count.
And with the sudden cancellation of the DHS Pixar Pals Parade, as weak of an offering as it was, the comparison between "Parades & Night Spectaculars" is now alarmingly close between the 2 Disneyland parks and the 4 WDW parks overall.
It's baffling to me how they can pull that off in Orlando, but there it is. Thank God for Epcot!
I've never really seen the point of comparing the two coasts in terms of "rides"
I would never put Heimlich's Choo Choo train in the same league as the likes of Spaceship Earth, yet when adding up the rides for each coast they both count as 1.
And Gadget's Go Coaster (maybe a minute) doesn't even compare in length or depth to the Universe of Energy (approx 30-40 mins) yet again they are each counted 1 ride, as if they were the same.
The reason why I say this is because it's not the number of rides that attracts people to each coast, nor is it what makes one coast "better" than the other. It is the depth, storytelling, and likability of certain rides that entices guests to make the trip, either to DL or WDW. I would never travel 2,500 miles out west for spinners, short kiddie rides, and similar experiences I can get at a local, less expensive park. What I would travel that far for would be rides such as RSR, and overall experiences of walking around an attraction such as Carsland.
I believe there was another area in the forums that I participated in, where we were determining what counted and what didn't count as an attraction. Looking back I feel like I wasted my time. Is the Shooting Arcade an attraction? What about meet and greets? Main Street Theater? How about Walk-through attraction? And again to the point I made above regarding rides. Ride A > Ride B so why is Ride A = Ride B when tallied up?
So when you say you tallied up DL and WDW to have a similar number of total rides, even though one has 2 parks and the other has 4 parks, it doesn't really do anything for me. For example, I would rather have 5 universally proclaimed E-ticket rides in Park A, than 10 spinners/kiddie rides in Park B. I think we would all agree on that. If you were to compare the number of E-tickets on both coasts, then that I feel might be better determinate of what entices the guests to come to the resort. However, a lot of personal bias comes into play when grading what is and what isn't an E-ticket, so I won't try and start.
All I know is that both resorts on each coast have enticing, unique offers to potential guests to motivate them to travel one way or the other, or to both. And rides aren't the only attractions offered to entertain the guests so comparing the resorts in terms of ride count doesn't do very much, in my opinion.