I think The Cage
is improved by being a part of The Menagerie.
As to the OP question, do I want the prime timeline back? No, it was beaten to death, sometime during the run of DS9, VOY, ENT, GEN, FC, INS, and NEM. Really, the prime timeline was showing signs of emotional distress during the latter seasons of TNG, but there were acute warning signs as early as the first season of TNG, as well as in TFF. I will always love the prime timeline, but I think it's best that she rest in peace. Else, brains.