ما جاء في إدام رسول الله صلى الله عليه وسلم
25  
What Rasoolullah Would Eat with Bread
Ash-Shama'il Al-Muhammadiyah 170
'Abdu’llah ibn Ja'far said:
“I heard Allah’s Messenger say (Allah bless him and give him peace): ‘The best of the meat is the back'.”
حَدَّثَنَا مَحْمُودُ بْنُ غَيْلانَ، قَالَ‏:‏ حَدَّثَنَا أَبُو أَحْمَدَ، قَالَ‏:‏ حَدَّثَنَا مِسْعَرٌ، قَالَ‏:‏ سَمِعْتُ شَيْخًا، مِنْ فَهْمٍ، قَالَ‏:‏ سَمِعْتُ عَبْدَ اللهِ بْنَ جَعْفَرٍ، يَقُولُ‏:‏ سَمِعْتُ رَسُولَ اللهِ صلى الله عليه وسلم، يَقُولُ‏:‏ إِنَّ أَطْيَبَ اللَّحْمِ لَحْمُ الظَّهْرِ‏.‏
Grade: Hasan (Zubair Alizai)  حسن   (Zubair Alizai) حكم   :
Reference : Ash-Shama'il Al-Muhammadiyah 170
In-book reference : Book 25, Hadith 21
Explanation
comments
There is no contradiction between this and other narrations in which it is mentioned that he liked the meat of the dhiraa portion. Due to different reasons and the quality, both can be good. For example, strengthwise or it having less fibre, more fat etc. Therefore due to different aspects, both could be preferred and also be excellent.
Hadith Text
Reference