#1 Roman Reigns vs Jinder Mahal
Roman Reigns and Jinder Mahal feud was probably the most baseless and senseless feud ever seen in recent times. While trying to give a push to an already established and equally hated Roman Reigns, WWE found it's bait in the form of Jinder Mahal who was a couple of months back being pushed into the main event arena.
The feud was baseless and worked only as a substitute for Roman Reigns during Brock Lesnar's absence. Nonetheless, the feud ended with one bout in a PPV and Roman found Bobby Lashley as a new opponent.
A storyline that sounds interesting if accompanied by good promos and wrestling could work wonders for the company. Jinder Mahal on the other hand hasn't made an appearance after that.