I would like to add that MI and SMW have huge fan followings. I am more partial to MI.
I should also mention that SMW is one of the Creeds which suffers a lot from "batch" variations. I have tried it from many different sources, and its composition % varies a lot. My initial experience with it was from a "batch" in which the blackcurrant note dominated the composition - as a result the juice was a little too sweet for me.
I recently revisited SMW at Saks after trying the wonderful shower gel, in which the scent concentrate strikes the perfect balance of tea and currants. The tester at Saks had just the right mix of the two dominant notes and it smelled fantastic. I took home a sample and darn it, it was ripe currants all again.
Nevertheless, I decided to buy a decant from a trusted seller and was glad to receive the "perfectly balanced" juice in which the tea and citrus note are more perceptible and lend a refreshing transparency to the composition.
I dont know what causes this imbalance in SMW but I would say try before you buy. Its a wonderful fragrance...if you are able to experience it in its intended form.
Oh, and there are no similarities between SMW and Ck1. They are the same "type" of scent in the same way that all leather scents are similar, but ck1 is definitely not a direct substitue for SMW.