Honestly, I liked the Downey/Law films. I know that they are totally different from Sherlock and therefore I'm not going to compare them. I like RDJ very much, he has played a number of extraordinary and brilliant roles (Kiss Kiss Bang Bang, Chaplin, Less than zero, The singing detective, Fur, etc.). Of course they are pure entertainment, popcorn cinema as we call it in German, but to me that is no sin. They depict a later stage in the friendship of Holmes and Watson and there are some very good, quiet scenes that show how deeply Holmes feels for Watson and how afraid he is of loving him to his future wife. Of course it can be argues that it is not in the canon but this I think applies to other adaptations as well.
I must admit that I have a problem with the Jeremy Brett series. My brother-in-law gave me a DVD set and I was totally disappointed that Watson was such an old man. I guess I've been totally spoilt be Martin and Jude law, but for me it simply didn't work. The special chemistry, the constant sparkle that is between them was missing. But I promise I'll have another go. Maybe I'm simply attracted to the more "modern", audacious adaptations.
That said I wish to add that of course I LOVE Sherlock and that it is a wonderful challenge to the mind … yes, and the heart and the eyes and so on … Why else would I be here?? 
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"To fake the death of one sibling may be regarded as a misfortune; to fake the death of both looks like carelessness." Oscar Wilde about Mycroft Holmes"It is what it is says love." (Erich Fried)“Enjoy the journey of life and not just the endgame. I’m also a great believer in treating others as you would like to be treated.” (Benedict Cumberbatch)