WDW appears slightly shorter than Disneylands. The width difference is negligible but DLs shorter buildings make the width seem more in Anaheim.
Purely subjective standpoint.
I found the Main St. at Disneyland to be more...in line with what I remember Main St. being.
At WDW, it long since has turned into a huge congestion point. Basically it's where you rush through to get somewhere else, crowd around for the parades, and then rush back through the shopping mall atmosphere (or rush through to escape it)...
The loss of center street really breaks the whole concept, as you can't really "experience" a relaxing trip back in time at WDW anymore. It's more just like...hey, welcome to Disney, we have this because, well, Disney...
Things don't work there (even if still present)...
- Dapper Dans
- Carriages and vehicles
- Facades...there is no "facade", they linked all the shops together and now it's just one jumbled mess of shopping and food for the most part...I get WHY they did this, but...
Toss into that the fact that finding a relaxing place there is nearly impossible, even during off peak times. Nowhere to sit and enjoy...it's a rush through to get to the rides.
Disneyland's is similar in many respects, but at least they TRIED a lot harder to keep the isolated shops going. For example, the Penny Arcade facade still exists at both DLC and MK...at MK, it's now a bland fashion thing which blends into the larger emporium which has taken over that whole side of the street with the exception of Caseys...at Disneyland, at least as of my visit a few years ago, they at least tried. They kept the facade and a few machines near the entrance before you delve into a shopping mall "world of disney" style setting...
I get the WHY, I just think it really devalues the entire section of the park...imho. It's a well themed Walmart.