The MK portion of the Backstage Magic Tour is very little like the KTTK tour. The only similarity was going downstairs to the utilidors. And even then, you are only shown a hallway and told about how the MK was built. In the KTTK tour, you see costuming and makeup and hair as well as all the above ground stuff.
We did Backstage Magic last March. We started in Epcot and learned about the backstage areas. Spent time in AA learning about how the show works, then went to the Cast building to learn about cast and world showcase costumes. Then we went to the floral building where they make all the floral arrangements (except some resorts do their own) and where they make the gift baskets. We were told that was a new part of the tour - that they are always trying to change something and takes guests to new places. Then we went to MGM and saw costuming there. All the prototypes of the princess dresses in the snowglobe parade etc. Had a wonderful lunch at Mama Melroses (do I have that name right?) Then we went behind the MK to a building where they work on engineering stuff - like they had all the Space Mtn vehicles from
Disneyland there for rehab, and the animatromic figures (i.e. Nemo was there) and they also make all the character heads. They said they no longer show those as once a reporter came on the tour and snuck a photo and then did an article about Mickey's head.
Then we went to the Christmas building - the best part of the tour. Really neat. Then went to the MK to the utilidors and to watch the afternoon parade. Could have done without that. <yawn> Then back to Epcot.
I think they did a good job of keeping the tour different from the WS tour and the KTTK tour. It was good, but a long day. Very different from the other two, so hard to compare.
I have done the WS tour twice. We had a really good guide the first time and a lousy one the next time. Heard a lot of the same things, so they must keep that tour almost the same. (I was with two different people.)
I've done the Backstage Safari twice and loved it both times. WOuld even do it a third time. It had changed for the second one and I've read that it's changed again.
You will love whatever you do - it's only your pocketbook that makes or breaks it!