Having recently spent five days at DL after having only visited WDW in the past decade I set out to enjoy DL for all the positive things it has to offer. And it is a wonderful place! Since the end of my trip I have been trying to find a way to verbalize the differences and I think I finally have. Wait for it...
Disneyland vs. Disney World
Rides vs. Atmosphere
Yes, both parks have both rides and atmosphere. But, I think DL has the edge on rides and WDW has the edge when it comes to atmosphere.
As a WDW vet, it's easy to get caught in the trap of saying, "At DL, I only want to experience everything that is different from WDW." That is where I started. However, once I started experiencing the attractions, I realized that many of the rides that seem the same (Peter Pan for instance) are in fact just a tad better at DL.
Also, due to sheer volume, DL takes the prize in terms of attractions. I read that DL has only 10% fewer rides than all four parks combined at WDW and I believe that to be true. However, I don't think that is an automatic slam dunk in terms of comparison of the two parks.
Because DL is almost entirely all rides, you miss out on a lot of the atmosphere that you get at WDW. Disney Imaginers are masters at taking places that many of us will never experience and transporting us through time, space and across oceans. Be it the Maharajah Jungle Trek and Pangani Trail at Animal Kingdom or the country pavilions in the World Showcase at Epcot. These experiences and many more like them, transport you to another time and place without stepping foot onto a ride. With the extra real estate, WDW is able to create a place where you don't even have to step foot on a ride to feel the Disney Magic.
This is especially true of the WDW resorts. Each resort transports you to a completely different time and place in a way that only Disney can. Wilderness Lodge is an excellent example. With all the details put into that resort including a lifelike geyser that erupts every hour, wildlife and being surrounded by Bay Lake, it's hard to imagine that The Magic Kingdom is just a short boat ride away.
Both WDW and DL are special in their own ways, and I encourage everyone to experience both if you can.
So, what are your thoughts?
Disneyland vs. Disney World
Rides vs. Atmosphere
Yes, both parks have both rides and atmosphere. But, I think DL has the edge on rides and WDW has the edge when it comes to atmosphere.
As a WDW vet, it's easy to get caught in the trap of saying, "At DL, I only want to experience everything that is different from WDW." That is where I started. However, once I started experiencing the attractions, I realized that many of the rides that seem the same (Peter Pan for instance) are in fact just a tad better at DL.
Also, due to sheer volume, DL takes the prize in terms of attractions. I read that DL has only 10% fewer rides than all four parks combined at WDW and I believe that to be true. However, I don't think that is an automatic slam dunk in terms of comparison of the two parks.
Because DL is almost entirely all rides, you miss out on a lot of the atmosphere that you get at WDW. Disney Imaginers are masters at taking places that many of us will never experience and transporting us through time, space and across oceans. Be it the Maharajah Jungle Trek and Pangani Trail at Animal Kingdom or the country pavilions in the World Showcase at Epcot. These experiences and many more like them, transport you to another time and place without stepping foot onto a ride. With the extra real estate, WDW is able to create a place where you don't even have to step foot on a ride to feel the Disney Magic.
This is especially true of the WDW resorts. Each resort transports you to a completely different time and place in a way that only Disney can. Wilderness Lodge is an excellent example. With all the details put into that resort including a lifelike geyser that erupts every hour, wildlife and being surrounded by Bay Lake, it's hard to imagine that The Magic Kingdom is just a short boat ride away.
Both WDW and DL are special in their own ways, and I encourage everyone to experience both if you can.

So, what are your thoughts?

Some of it was for different reasons, and some were for the same reasons. There is just a special magic at both.
It is what makes them unique and oh so special.
It was a great moment that I've never experienced at WDW.
And yet I am already missing WDW! I know that this is a different vacation and am expecting to fall in love with DL ... but I know I will miss EPCOT and AK. I have read so much about the differences, I don't feel that I will be in any way disappointed with DLR but I do know that I will 'miss' our favorites from WDW that are not in DLR. And yes, we are already planning next years WDW trip. Hopefully while there, we will want to start planning 2012's DLR trip! 
